Two New Species of the Neotropical Catfish GenusLepthoplosternum(Ostariophysi: Siluriformes: Callichthyidae)

Autor:	Cintia C. Kaefer, Roberto E. Reis
Rok vydání:	2005
Předmět:	Ostariophysi biology Peduncle (anatomy) Callichthyidae Anatomy Aquatic Science biology.organism_classification Dorsal fin Genus Animal Science and Zoology Lepthoplosternum Lepthoplosternum altamazonicum Ecology Evolution Behavior and Systematics Catfish
Zdroj:	Copeia. 2005:724-731
ISSN:	1938-5110 0045-8511
DOI:	10.1643/0045-8511(2005)005[0724:tnsotn]2.0.co;2
Popis:	Two new species of the callichthyid catfish genus Lepthoplosternum are described from the Amazon region. Lepthoplosternum stellatum is described from a tributary of Lago Tefe, Amazonas, Brazil, and it is diagnosed from other Lepthoplosternum species by a unique combination of characters: lower lip with pointed, crenulate, triangular fleshy projections lateral to the medial notch, caudal peduncle comparatively shallow (15.7–18.9% SL), and dorsal fin usually with one unbranched and seven branched rays. Lepthoplosternum ucamara is described from the Pacaya-Samiria National Reserve in the lower Ucayali River, Loreto, Peru, and can be diagnosed from other Lepthoplosternum species by the following unique combination of characters: lower lip with short, rounded projections, caudal peduncle comparatively shallow (15.2–17.7% SL), and dorsal fin with two unbranched and six branched rays. The distribution of Lepthoplosternum altamazonicum is extended to include the varzea floodplains of the Solimoes River a...
Databáze:	OpenAIRE
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