Procerusternarchus pixuna, a new genus and species of electric knifefish (Gymnotiformes: Hypopomidae, Microsternarchini) from the Negro River, South America

Autor:	Adília Nogueira, José Antônio Alves-Gomes, Cristina Cox Fernandes
Rok vydání:	2014
Předmět:	geography food.ingredient geography.geographical_feature_category Ecology biology Gymnotiformes biology.organism_classification Tribe (biology) food Taxon Genus Tributary Microsternarchus Hypopomidae Ecology Evolution Behavior and Systematics Meristics
Zdroj:	Proceedings of the Academy of Natural Sciences of Philadelphia. 163:95-118
ISSN:	1938-5293 0097-3157
DOI:	10.1635/053.163.0107
Popis:	Procerusternarchus pixuna, a new genus and species of hypopomid gymnotiform, is described from several tributaries of Negro River, Amazonas State, Brazil. The new genus is included in the tribe Microsternarchini with the genera Microsternarchus and Racenisia based on a phylogenetic analysis of 41 anatomical, morphometric, meristic, and electric organ discharge variable characters. The new taxon is distinguished from Microsternarchus and Racenisia by the apomorphic presence of a deep, enlarged myogenic electric organ, an electric organ discharge with a greatly reduced negative phase and the plesiomorphic condition of a fully-scaled body, whereas scales are absent from the upper back of Microsternarchus and Racenisia.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::983b1b712dca95b209444588ff7174ef https://doi.org/10.1635/053.163.0107 Zobrazit plný text záznamu