Varella, Henrique Rosa. 2011. "Revisão taxonômica das espécies de Crenicichla Heckel das bacias dos rios Paraná e Paraguai (Teleostei: Cichlidae)". Dissertação de Mestrado, Instituto de Biociências da Universidade de São Paulo/ Museu de Zoologia da USP, São Paulo. i-xiv, 1-194 (crc09208)
Varella, Henrique Rosa & S.O. Kullander, F.C.T. Lima. 2012. "Crenicichla chicha, a new species of pike cichlid (Teleostei: Cichlidae) from the rio Papagaio, upper rio Tapajós basin, Mato Grosso, Brazil". Neotropical Ichthyology. 10(2):233-244 (crc04540) (streszczenie)
Varella, Henrique Rosa & C.R. Moreira. 2013. "Teleocichla wajapi, a new species of cichlid from the rio Jari, Brazil, with comments on T. centrarchus Kullander, 1988 (Teleostei: Cichlidae)". Zootaxa. 3641(2):3641. DOI: 10.11646/zootaxa.3641.2.5 (crc05039) (streszczenie)
Varella, Henrique Rosa & M.H. Sabaj Pérez. 2014. "A titan among dwarfs: Apistogramma kullanderi, new species (Teleostei: Cichlidae)". Ichthyological Explorations of Freshwaters. 25(3):243-258 (crc06519) (streszczenie)
Varella, Henrique Rosa & R. Britzke. 2016. "Apistogramma eleutheria and A. flavipedunculata, two new species of dwarf cichlids from the rio Curuá on Serra do Cachimbo, Brazil (Teleostei: Cichlidae)". Ichthyological Explorations of Freshwaters. 27(1):81-95 (crc07300) (streszczenie)
Varella, Henrique Rosa & J. Zuanon, S.O. Kullander, H. López-Fernández. 2016. "Teleocichla preta, a new species of cichlid from the Rio Xingu Basin in Brazil (Teleostei: Cichlidae)". Journal of Fish Biology. 1-19. DOI: 10.1111/jfb.13053 (crc07338) (streszczenie)
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) (streszczenie)
Varella, Henrique Rosa & M.V. Loeb, F.C.T. Lima, S.O. Kullander. 2018. "Crenicichla ploegi, a new species of pike-cichlid of the C. saxatilis group from the Rio Juruena and upper Rio Paraguai basins in Brazil, with an updated diagnosis and biogeographical comments on the group (Teleostei: Cichlidae)". Zootaxa. 4377(3):361–386. DOI: 10.11646/zootaxa.4377.3.3 (crc08403) (streszczenie)
Varella, Henrique Rosa & Sven O. Kullander, Naércio A. Menezes, Claudio Oliveira, Hernán López-Fernández. 2023. "Revision of the generic classification of pike cichlids using an integrative phylogenetic approach (Cichlidae: tribe Geophagini: subtribe Crenicichlina)". Zoological Journal of the Linnean Society. 2023(20):1-43. DOI: 10.1093/zoolinnean/zlad021 (crc12305) (streszczenie)