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Focus Central America

Short synopsis of Petenia Günther, 1862

作者 , 2005.
最後更新情形 11- 8月-2005

Michi Tobler, 2005

Type species: Petenia splendida Günther, 1862

Distinctive characters: Petenia is a monotypic genus including a highly specialized piscivorous species. Kullander (1996) gave a revised diagnosis of the genus. Among others distinguishing characters include:

  • All teeth caniniform, strongly recurved.
  • Coronalis pore and channel absent.
  • Premaxillary ascending processes reaching to posterior margin orbit (young) or to posterior margin of skull.
  • Dorsal and anal fin naked.

Species currently included:

Petenia splendida C, E(Polychromatism), H(Laguna Noh)
C=CRC Catalogue, E=Note on ecology, H=Habitat description

Distribution: Atlantic slope from Grijalva River to Usumacinta River (México), Usumacinta River (Northern Guatemala), and Belize. Introduced west of the Isthmus of Tehuantepec (e.g. Rio Tonala, Rio Papaloapan system).

Further information: Petenia is known to exhibit a stricking color polymorphism. Beside the normal morph, consipcuous red individuals can be found in natural populations.

From Rio Tonto Petenia splendida from the Rio Tonto, Papaloapan; Veracruz Mexico. 拍攝者 Juan Miguel Artigas Azas. 鑑定者 Juan Miguel Artigas Azas

引語:

Tobler, Michi. (八月 11, 2005). "Short synopsis of Petenia Günther, 1862". Cichlid Room Companion. 檢索 九月 21, 2019, 來自: https://cichlidae.com/section.php?id=20&lang=zh.