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關於慈鯛的新聞


New species of Hemichromis described
New species of Hemichromis described

作者 Juan Miguel Artigas Azas (04-2月-2021)

A work on the five-spotted group of Hemichromis from West Africa has recently been published in the journal Hydrobiologia, the paper is authored by Arnold Roger Bitja-Nyom, Jean-François Agnèse, Antoine Pariselle, Charles Félix Bilong-Bilong, André Gilles, and Jos Snoeks. The study includes the result of a mitochondrial DNA comparison for three Hemichromis species (fasciatus, frempongi and elongatus) from 100 populations from Senegal east and south to Gabon (no samplings were made in Angola). The resulting phylogenetic tree is formed by two clusters. The first (western and northernmost) cluster produced four clades (subgroups): one of them include what we know as H. fasciatus and H. frempongi, and hence the authors propose the synonymy of the latter with the former. The other three clades are formed by different populations of the southern H. elongatus. The second cluster, formed by three different clades from populations from Cameroon, has been described as a new species, Hemichromis camerounensis, with populations in Cameroon and Nigeria. The diagnosis is given as “two distinct red opercular spots on either side of the single large black opercular spot”. Unfortunately, this diagnosis appears not be applicable since many individuals in the populations of H. elongatus south to Angola show the same feature.

Bitja-Nyom, Arnold Roger & Jean-François Agnèse, Antoine Pariselle, Charles Félix Bilong-Bilong, André Gilles, Jos Snoeks. 2021. "A systematic revision of the five-spotted Hemichromis complex (Cichliformes: Cichlidae) from West Africa and Lower Guinea, with the description of a new species from Cameroon". Hydrobiologia. 848: 3779–3803. DOI: 10.1007/s10750-020-04506-5 (crc11122) (摘要)

Four new species of Serranochromis described
Four new species of Serranochromis described

作者 Juan Miguel Artigas Azas (23-1月-2021)

Four new species of riverine cichlids in the genus Serranochromis from the Cuanza and Okavango river systems in Angola (to where they are probably endemic) have been described by Jay Stauffer, Paul Skelton and Rober Bills in the journal Zootaxa. The four species, namely Serranochromis alvum (meaning blotches from Latin, in reference to the prominent lateral pigmentation), S. cacuchi (referring the type locality at Cacuchi River), S. cuanza (referring the type locality at Cuanza River) and S. swartzi (after the primary collector Dr. Ernst Swartz - ichthyologist at the South African Institute for Aquatic Biodiversity) differ from each other and other Serranochromis species in a combination of morphological, meristic and color pattern features which include distance between eyes, angle of snout or mouth cleft, presence or not of ocelli in the anal fin, and others. No phylogenetic support based on DNA comparison is offered by the authors.

Stauffer, Jay Richard Jr. & Roger Bills, Paul H. Skelton. 2021. "Four new species of Serranochromis (Teleostei: Cichlidae) from the Cuanza and Okavango river systems in Angola, including a preliminary key for the genus". Zootaxa. 4908(1):66–84. DOI: 10.11646/zootaxa.4908.1.4 (crc11108) (摘要)

New species of Lake Malawi cichlid described
New species of Lake Malawi cichlid described

作者 Juan Miguel Artigas Azas (10-1月-2021)

A new species of deep water cichlid of the genus Diplotaxodon endemic to Lake Malawi has been described by Jay R. Stauffer and Ad Konings in the journal Zootaxa. The new species rounds 15 cm in length and was captured off Thumbi East Island in Malawi, at 73 meters depth. The species is distinguished from the rest of the species in Diplotaxodon by a combination of characteristics, none of them unique to the new species. The name given: dentatus, alludes to caniniform teeth which are exposed when the mouth is closed. As other species in the genus, D. dentatus is believed to be a piscivorous due to the specialized dentition and habitat.

Stauffer, Jay Richard Jr. & A.F. Konings. 2021. "A new species of Diplotaxodon (Cichliformes: Cichlidae) from Lake Malawi". Zootaxa. 4903(2):275–284. DOI: 10.11646/zootaxa.4903.2.7 (crc08359) (摘要)

A new species of paedophagous Lake Malawi cichlid has been described
A new species of paedophagous Lake Malawi cichlid has been described

作者 Juan Miguel Artigas Azas (24-6月-2020)

A new species of paedophagous cichlid from Lake Malawi has been described by Katrien Dierickx and Jos Snoeks of the Royal Museum for Central Africa [Tervuren]. The new species was previously known as Hemitaeniochromis sp. 'paedophage' and has been named Protomelas krampus. The genus was chosen because the new species has a continuous mid-lateral stripe, versus an anteriorly spotted stripe seen in Hemitaeniochromis. It is diagnosed from most of the species of Protomelas by having only one inner tooth row, versus two rows. The specific name of choice 'krampus' refers to the European folklore character Krampus, a demon who puts naughty children in a bag and takes them away. The species probably has a lake wide distribution in all Lake Malawi coasts but most of the collecting localities so far are found in the central eastern part of the Lake.

Dierickx, Katrien & Jos Snoeks. 2020. "Protomelas krampus, a new paedophagous cichlid from Lake Malawi (Teleostei, Cichlidae)". European Journal of Taxonomy. (672):1–18. DOI: 10.5852/ejt.2020.672 (crc09780) (摘要)

A new species of Cichla from the Essequibo River described
A new species of Cichla from the Essequibo River described

作者 Juan Miguel Artigas Azas (25-3月-2020)

A new species of Cichla from the Essequibo River channel in Guyana and Venezuela has been described by Mark H. Sabaj Pérez and a group of researchers in the Proceedings of the Academy of Natural Sciences of Philadelphia. The new species, Cichla cataractae, also known as falls Lukunani in Guyana, had been previously identified as Cichla ocellaris, a locally smaller species with which it is syntopic. Unlike Cichla ocellaris, which inhabits ponds and slow water courses, the new species seems to prefer areas of moderate flow and waterfalls, an habit that inspired its specific name (cataractae means waterfall or rapids in Latin). The diagnosis is based in color pattern differences in both juveniles and adults, which distinguish it from all other Cichla species. In adults, the lateral pattern in C. cataractae is dominated by two prominent dark blotches, each one with pale border.

Sabaj Pérez, Mark H & Hernán López-Fernández, Stuart C.Willis, Devya D. Hemraj, Donald C. Taphorn, Kirk O. Winemiller. 2020. "Cichla cataractae (Cichliformes: Cichlidae), new species of peacock bass from the Essequibo Basin, Guyana and Venezuela". Proceedings of the Academy of Natural Sciences of Philadelphia. 167(1):69-86. DOI: 10.1635/053.167.0106 (crc09634) (摘要)

Two new genera and species of riverine cichlids from Zambia have been described
Two new genera and species of riverine cichlids from Zambia have been described

作者 Juan Miguel Artigas Azas (20-1月-2020)

Two new species of Pseudocrenilabrini riverine cichlids from Zambia have been described by Frederic D.B. Schedel, V.M.S. Kupriyanov, C. Katongo, and Uldrich Schliewen in the journal Zootaxa. Each one of this species has been given a new monotypic genus. Both relatively recently discovered species species had been found in nuclear and mitochondrial DNA comparisons to belong to ancient evolutive lineages older than any Pseudocrenilabrus species, which has inspired their description in monotypic genera. Their diagnosis relies mainly on subtle differences of their osteology, where the distance between the first two of a series of five small bones under the eye is used. Lufubuchromis relictus is native (as its generic name implies) to the Lufubu River (both above and below the Lufubu hydroelectric dam), which discharges into Lake Tanganyika. The specific name relictus (residue from Latin), refers to the restricted distribution of this species in the isolated upper region of an ancient plateau, where its phylogenetic position as the ancient mitochondrial sister group of all other members of the Pseudocrenilabrus lineage suggests that it represents a relict ancient evolutionary lineage. Palaeoplex palimpsest is known from the Luongo River, a tributary of Luapula River, and from several locations in the Kalungwishi River drainage, both rivers drain into Lake Mweru, and are part of the Congo River drainage. The etymology of this species is as elaborated as the diagnosis; A palaeoplex is a concept in geoecodynamics, the study of changes in geology and ecology in a given area (landscape) over time. A palaeoplex describes the full genetic variation of a given species in a given landscape over a given time, as this genus is believed to have evolved in a particular ancient landscape. A palimpsest is a parchment manuscript page, most commonly used in medieval times, that has been secondarily overwritten after layers of old handwritten letters had been scraped off, sometimes repeatedly.

Schedel, Frederic D. B & V.M.S. Kupriyanov, C. Katongo, U.K. Schliewen. 2020. "Palaeoplex gen. nov. and Lufubuchromis gen. non, two new monotypic cichlid genera (Teleostei: Cichlidae) from northern Zambia". Zootaxa. 4718(2):191–229. DOI: 10.11646/zootaxa.4718.2.3 (crc02709) (摘要)

Three snail-eater Haplochromis species from Lake Edward are described
Three snail-eater Haplochromis species from Lake Edward are described

作者 Juan Miguel Artigas Azas (08-11月-2019)

Three recently discovered snail-eater Haplochromis species from Lake Edward, the smallest of the African Rift Lakes located in the border of the Democratic Republic of Congo and Uganda have been described by Nathan Vranken, M. Van Steenberge and Jos Snoeks at the Royal Museum of Central Africa at Tervuren [Belgium] in the Journal of Fish Biology. The new species are Haplochromis concilians, named after its main diagnostic character of having the skin covering the snout thickened and usually merged with the upper lip, conciliare meaning join together in Latin; Haplochromis erutus is diagnosed by a combination of oral characters, its specific name meaning torn-out in Latin, referring to its oral-shelling ecology, in which soft bodies of snails are wrenched or torn out of their shells; The third species, Haplochromis planus differs from all other species of Haplochromis (except H. retrodens from Lake Victoria), by possessing a shallow, broad and rectangular lower jaw, the specific name planus, meaning flat in Latin, refers to its flat, shovel-like lower jaw. All three species are smaller than 12 cm in total length.

Vranken, Nathan & M. Van Steenberge, J. Snoeks. 2019. "Similar ecology, different morphology: Three new species of oral-mollusc shellers from Lake Edward". Journal of Fish Biology. 1–16. DOI: 10.1111/jfb.14107 (crc09510) (摘要)

A new monotypic genus for Gobiochromis irvinei is described
A new monotypic genus for Gobiochromis irvinei is described

作者 Juan Miguel Artigas Azas (10-10月-2019)

In a new paper Uli Schliewen and Juliane Weiss have described a new monotypic genus for the rheophilic African cichlid initially described as Gobiochromis irvinei (recently known as Steatocranus irvinei). The new genus was expected since in 2013, Dunz & Schliewen presented a comprehensive molecular phylogeny of haplotilapiine cichlids, where they found that Paragobiocichla irvinei falls well outside the tribe Steatocranini which contains all Confo drainage Steatocranus species, and fits instead in the just far related tribe Gobiocichlini, with its closest relatives being Tilapia busumana and T. pra. It seems then that the superficial similarities between Paragobiocichla irvinei and all Steatocranus species are the result of convergent evolution and not close relatedness. The new genus is soundly diagnosed, with the name given suggesting its close relation with Gobiocichla species from the Volta river drainage.

Weiss, Juliane D. & F.D.B. Schedel, A. Zamba, Ibala, E.J.W.M.N. Vreven, U.K. Schliewen. 2019. "Paragobiocichla, a new genus name for Gobiochromis irvinei Trewavas, 1943". Spixiana. 42(1):133-139 (crc09446) (摘要)

A new species of Thysochromis is described

作者 Juan Miguel Artigas Azas (09-10月-2019)

A new species of Thysochromis from the Republic of Congo has been described in the Journal of Fish Biology by Gina Walsh, Anton Lamboj and Melanie Stiassny. The new species has its origin in the collection of two specimens collected in 1991 in Lake Koubambi, originally identified as Thysochromis ansorgii, but with a significant distribution disruption. The new species, Thysochromis emili is named after Emil Woolf Kentridge-Young, grandson of William Kentridge and Anne Stanwix, in recognition by the authors of their support of research in Africa. T. emili is diagnosed from T. ansorgii by a combination of characters, which include fewer scale rows between the pectoral and pelvic-fin origins; jaw teeth closely spaced and evenly implanted over entire length of both upper and lower jaws (versus widely spaced and unevenly implanted along distal portions); a supra-occipital crest that is continuous with the frontal ridge (versus terminating posterior to frontal ridge); a shorter post-orbital length and a shorter caudal peduncle length. T. emili is known from well oxygenated lakes and rivers, where it was collected in shallow, clear water shoreline waters fringed by abundant overhanging vegetation. The paper also includes recognizes the synonymy of T. annectens with T. ansorgii.

Walsh, Gina & Anton Lamboj, Melanie L.J. Stiassny. 2019. "Review of the cichlid genus Thysochromis (Teleostei: Ovalentaria) with the description of a new species from the Kouilou Province in the Republic of Congo, west–central Africa". Journal of Fish Biology. DOI: 10.1111/jfb.14144 (crc09445) (摘要)

New species of Apistogramma from Colombia described
New species of Apistogramma from Colombia described

作者 Juan Miguel Artigas Azas (21-2月-2019)

A new species of Apistogramma from the lower Atabapo drainage in Colombia has been described by Wolfgang Staeck and Ingo Schindler in the journal Vertebrate Zoology. The new species A. psammophila can be distinguished from all congeners by a combination of characters, including two horizontal stripes on body sides, two pectoral spots, a suborbital stripe becoming much wider ventrally and no caudal spot. The more similar species is Apistogramma diplotaenia. The specific name given to this species is derived from Greek and means “friend of the sand”, in reference the habitat preference of this species.

Staeck, Wolfgang & I, Schindler. 2019. "Apistogramma psammophila – a new geophagine dwarf cichlid (Teleostei: Cichlidae) from the Rio Atabapo drainage in Colombia and Venezuela". Vertebrate Zoology. 69(1):103-110. DOI: 10.26049/VZ69-1-2019-05 (crc09295) (摘要)

New species of Gymnogeophagus from Argentina described
New species of Gymnogeophagus from Argentina described

作者 Juan Miguel Artigas Azas (20-2月-2019)

A new species of Gymnogeophagus, G. jaryi from the middle Parana River basin in Misiones, Argentina has been described by Felipe Alonso and a group of ten persons in the journal Plos One. The new species is diagnosed by meristic and color pattern differences with other species of the genus. It is established to be the sister species of G. caaguazuensis from which it differs by a longer caudal peduncle, caudal fin not lyrate, central portion of scales on dorsal portion of trunk light iridescent blue and by white spots in soft portion of dorsal fin in adult males. The specific name given to the new species jaryi means grandmother in Guarani and has been “dedicated to the Non-Governmental Organization of “Abuelas de Plaza de Mayo”, created in 1977 whose objective is to locate and restore to their legitimate families all the children disappeared by the last Argentine dictatorship”. The new species can also be found in adjacent areas in Paraguay.

Alonso, Felipe & G.E. Terán, G. Aguilera, O. Rícan, J. Casciotta, W.S. Serra, A. Almirón, M.F. Benítez, I. García, J.M. Mirande. 2019. "Description of a new species of the Neotropical cichlid genus Gymnogeophagus Miranda Ribeiro, 1918 (Teleostei: Cichliformes) from the Middle Paraná basin, Misiones, Argentina". Plos One. 14(2):e0210166. DOI: 10.1371/journal.pone.0210166 (crc09294) (摘要)

New species of Gymnogeophagus from Uruguay described
New species of Gymnogeophagus from Uruguay described

作者 Juan Miguel Artigas Azas (10-12月-2018)

A new species of Gymnogeophagus from Uruguay has been described by Andréia Turcati, Wilson Sebastián Serra-Alanis & Luiz R. Malabarba in the journal Neotropical Ichthyology. The new species owns somewhat hyperthrophied lips like the related G. labiatus and G. lacustris but it is diagnosed to differ from those species by the lack of an oblique bar from the eye to the dorsal-fin origin and by the color pattern of the caudal, dorsal and anal fins with dots (versus without them). The name given to this species is Gymnogeophagus peliochelynion with the specific name derived from Greek and meaning "black and blue lips". The new species is known from the río Arapey Grande drainage, a tributary of the lower río Uruguay basin.

Turcati, Andréia & W.S. Serra Alanis, L.R. Malabarba. 2018. "A new mouth brooder species of Gymnogeophagus with hypertrophied lips (Cichliformes: Cichlidae)". Neotropical Ichthyology. 16(4):Epub. DOI: 10.1590/1982-0224-20180118 (crc09183) (摘要)

Nomenclature changes in two Central American cichlids
Nomenclature changes in two Central American cichlids

作者 Juan Miguel Artigas Azas (08-11月-2018)

A new paper by Rico Morgenstern brings to light facts that force important nomenclature changes for two well-known Central American cichlid species: Parachromis friedrichsthalii and P. loisellei. The paper details the circumstances and presents an examination of the fish collections made by Emanuel Ritter von Friedrichsthal in Central America between 1838 and 1841. The most important results establish that the fish we now know as Parachromis loisellei was in fact previously described as P. friedrichsthalii, a name we should now use when referring to this species. The fish hitherto known as Parachromis friedrichsthalii should now be called P. multifasciatus. The name Parachromis loisellei falls now in junior synonymy with P. friedrichsthalii. These changes may create confusion but get use closer to have a sounder picture of Central American cichlids taxonomy.

Morgenstern, Rico. 2018. "Fishes collected by Emanuel Ritter von Friedrichsthal in Central America between 1838–1841". Vertebrate Zoology. 68(3):253–267 (crc09154) (摘要)

Six new species of Otopharynx described
Six new species of Otopharynx described

作者 Juan Miguel Artigas Azas (30-10月-2018)

A new paper by Michael K. Oliver contains the description of six new deep water Otopharynx cichlid species from Lake Malawi, to make a total of 20 species currently described in the genus. The new species are as follow: Otopharynx alpha, previously treated as Otopharynx 'auromarginatus stripe', is distinguished from congeners by its unique melanin pattern, to which the specific name alfa refers, a dot followed by a dash, representing “A” in International Morse Code; Otopharynx mumboensis, previously known as Protomelas sp. 'virgatus mumbo', is thought to be endemic to Mumbo Island in Malawi, it is separated from some congeners by the melanin pattern and from others by some meristic and morphometric traits; Otopharynx styrax, previously known as Otopharynx sp. 'torpedo blue' has a more elongate body than any congener, the specific name styrax is Greek for the metal spike at the lower end of a spear shaft, reflecting its elongated shape; Otopharynx aletes, previously referred as Oreochromis sp. 'molariform striped', is diagnosed by a combination of melanin, meristics and morphometric traits, the specific name aletes meaning grinder in Greek, and refers to its well-defined group of conspicuously enlarged molariform teeth on the lower pharyngeal bone; Otopharynx panniculus is also diagnosed by a combination of melanin, meristics and morphometric traits, most notably a square spot on the mid-flank which gives it its specific name, meaning “small cloth patch” in Latin; Finally Otopharynx peridodeka, previously referred as Trematocranus 'brevirostris deep', is similar to O. panniculus, but has more scales in the lateral line and a median of 12 lower gill rakers, versus a median of 14.5 in O. panniculus, the specific name peridodeka is a combined word meaning from Greek “around 12” which refers to this trait.

Oliver, Michael K.. 2018. "Six New Species of the Cichlid Genus Otopharynx from Lake Malawi (Teleostei: Cichlidae)". Bulletin of the Peabody Museum of Natural History. 59(2):159–197 (crc08933) (摘要)

Three new cichlid species are described from Lake Edward
Three new cichlid species are described from Lake Edward

作者 Juan Miguel Artigas Azas (10-10月-2018)

A new paper authored by Nathan Vranken, M. Van Steenberge, and Jos Snoeks has been published in the journal Hydrobiologia with a study of the cichlids of Lake Edward, concluding with the presence of five species feeding on other cichlids fry (phaedopahgus) in the Lake Edward system, a quite surprising number considering a cichlid fauna that may only reach a total of 60 species (36 described so far), extrapolating, this would mean that 70 phaedopagus species could inhabit Lake Malawi and 20 in Lake Tanganyika; far from this amount are recorded so far. The paper describes three of the species as new: Haplochromis molossus, with a specific name that refers to a “pug-like-head” (Molossus hound is a breed of dog from ancient southern Europe); Haplochromis gracilifur named after its slender body (gracilis = slender in Latin) and paedophagous diet (fur is thief in Latin); and Haplochromis relictidens, named in reference to the decrease in number with size of outer teeth in both jaws (relinquere means relinquish and dens means tooth in Latin); The three new species are established as endemic to the Lake Edward system — including the Kazinga channel for H. relictidens). The other two studied phaedophagus species correspond to Haplochromis taurinus and H. paradoxus.

Vranken, Nathan & M. Van Steenberge, J. Snoeks. 2018. "Grasping ecological opportunities: not one but five paedophagous species of Haplochromis (Teleostei: Cichlidae) in the Lake Edward system". Hydrobiologia. 1–30. DOI: 10.1007/s10750-018-3742-5 (crc08596) (摘要)

Five new species of Ortochromis are described
Five new species of Ortochromis are described

作者 Juan Miguel Artigas Azas (26-8月-2018)

Five new species of small current loving cichlids of the genus Ortochromis from East Africa have been described by Frederic Schedel, Emmanuel Vreven, Bauchet Manda, Emmanuel Abwe, Auguste Manda & Ulrich Schliewen in the journal Zootaxa. The five new species are distributed in fast flowing relatively shallow rivers in northern Zambia and the Democratic Republic of Congo, they are diagnosed by unique or combined meristic or coloration features. Orthochromis mporokoso is named after Mporokoso [Zambia] a town around the type locality; Orthochromis katumbii is named after Mr. Moïse Katumbi; Orthochromis kimpala refers to the local name for this species; Orthochromis gecki is named after named in honour of Mr. Jakob Geck, a German fish naturalist and Orthochromis indermauri (previously known as Orthochromis sp. 'chomba') honors the Swiss ichthyologist Dr. Adrian Indermaur, who was the first to document this new species with underwater photographs, videos, and with aquarium observations.

Schedel, Frederic D. B & E.J.W.M.N. Vreven, B.K. Manda, E. Abwe, A. Manda, U.K. Schliewen. 2018. "Description of five new rheophilic Orthochromis species (Teleostei: Cichlidae) from the Upper Congo drainage in Zambia and the Democratic Republic of the Congo". Zootaxa. 4461(3),. DOI: 10.11646/zootaxa.4464.3.1 (crc08570) (摘要)

Three new species of Geophagus from eastern Brazil are described
Three new species of Geophagus from eastern Brazil are described

作者 Juan Miguel Artigas Azas (10-7月-2018)

Three new species of Geophagus of the G. brasiliensis group, the three of them endemic to coastal rivers in eastern Brazil have been described by the Brazilian ichthyologists José L. Mattos and Wilson Costa in the journal Zoosystematics and Evolution. The species were delimited and diagnosed by a mix of both unique combinations of characters and DNA differences, the latter a novel approach in cichlid taxonomy. Geophagus rufomarginatus is known only from the middle and lower sections of the Buranhém River Basin in Bahia state, it is named after the red margin of the dorsal-fin lappets; Geophagus santosi is known only from the Rio Mariana, an isolated small coastal river of Bahia state, it is named in honor of Alexandre Clistenes Alcântara Santos, an ichthyologist friend of the authors; Geophagus multiocellus is known only from the middle section of the Rio de Contas Basin in Bahia stat, it is named after the presence of small pale blue spots with minute bright blue dots on its center on the caudal fin.

Mattos, José L & W.J.E.M. Costa. 2018. "Three new species of the ‘Geophagus’ brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini)". Zoosystematics and Evolution. 94(2):325-337. DOI: 10.3897/zse.94.22685 (crc08536) (摘要)

Diagnoses for all Laetacara species published
Diagnoses for all Laetacara species published

作者 Juan Miguel Artigas Azas (11-6月-2018)

A paper by the Brazilian ichthyologist Felipe P. Ottoni has been recently published in the journal Vertebrate Zoology presenting comprehensive diagnoses for all the species of the south American cichlid genus Laetacara. Diagnoses are based on characters included in their original descriptions as well as additional observed data. A key for their identification is also included, as well as updated distribution ranges for each one of them.

Ottoni, Felipe. 2018. "Update of diagnoses, information on distribution, species, and key for identification of Laetacara species (Teleostei, Cichlidae, Cichlasomatini)". Vertebrate Zoology. 68(1):47-63 (crc08497) (摘要)

Crenicichla sp. \'xingu III\' is described
Crenicichla sp. 'xingu III' is described

作者 Juan Miguel Artigas Azas (25-4月-2018)

A new species of Crenicichla from the Rio Xingu in the Amazon drainage has been described by Henrique Rosa Varela and Priscilla Ito in the Proceedings of the Academy of Natural Sciences of Philadelphia. The new species, previously known as Crenicichla sp. ‘Xingu III’, has been given the name Crenicichla dandara, in reference to an Afro-Brazilian warrior of Brazil’s colonial period, a woman symbol of the struggle against racism and the exploitation of black women. The new species is diagnosed from all other Crenicicla species (except C. hu) by an adult body live coloration uniformly black, and from C. hu by having a significant larger number of scales in the longitudinal line above the lateral line (74–86 versus 47–54). The new species is only currently known from the Middle to Upper Rio Xingu basin in the Amazon drainage in Brazil. Although part of the range of C. dandara has been destroyed (or will be) by the construction of the Belo Monte dam, the species is still found in a large area, and hence it is tentatively classified as of least concern according to the criteria of the IUCN.

Varella, Henrique Rosa & P.M.M. Ito. 2018. "Crenicichla dandara, new species: the black jacundá from the Rio Xingu (Teleostei: Cichlidae)". Proceedings of the Academy of Natural Sciences of Philadelphia. 166(1):1-12. DOI: 10.1635/053.166.0104 (crc08498) (摘要)

Two new Lake Malawi cichlids from deep water described
Two new Lake Malawi cichlids from deep water described

作者 Juan Miguel Artigas Azas (21-4月-2018)

Two new species of Diplotaxodon from deep Malawian waters of Lake Malawi have been described by Jay Stauffer, Titus Phiri & Ad Konings in the Proceedings of the Biological Society of Washington. Diplotaxodon altus, one of the new species has its type locality at Chipoka; it gets its specific name from both the deep body of the fish and its deep water habitat; between 40–130 m. It was previously known in scientific literature as Diplotaxodon 'deep’ or Diplotaxodon sp. 'similis white-back south'. Diplotaxodon longimaxilla, the second new species, has its type locality at Domira Bay; it gets its name because of its long upper jaw bone. It was found to be a common species in trawl nets from depths below 80 m. D. longimaxilla was known is scientific literature as Diplotaxodon 'brevimaxillaris'. Both species are diagnosed from the rest of the Diplotaxodon species by a combination of morphological proportions.

Stauffer, Jay Richard Jr. & T.B. Phiri, A.F. Konings. 2018. "Description of two deep-water fishes of the genus Diplotaxodon (Teleostei: Cichlidae) from Lake Malawi, Africa". Proceedings of the Biological Society of Washington. 131(1):90-100. DOI: 10.2988/PBSW-D-17-00004 (crc08486) (摘要)