New species of Parotocinclus (Siluriformes: Loricariidae) from coastal drainages of Rio de Janeiro, southeastern Brazil - L-Welse.com Forum

Karsten S. · 16.02.2017, 18:41

New species of Parotocinclus (Siluriformes: Loricariidae) from coastal drainages of Rio de Janeiro, southeastern Brazil
Fábio F. Roxo, Bruno F. Melo, Gabriel S. C. Silva, Claudio Oliveira

Abstract
A new species of Parotocinclus is described from tributaries of rio São João, an Atlantic coastal river of Rio de Janeiro, southeastern Brazil. The new species is distinguished from its congeners by the possession of a triangular patch of dark pigmentation on the anterior portion of the dorsal-fin base, a fully developed adipose fin, complete exposure of the ventral surface of the pectoral girdle, and a distinctive pigmentation pattern of the caudal fin. The caudal fin has a hyaline background with a large black blotch covering its anterior portion, tapering irregularly through distal portions of the ventral lobe with a hyaline rounded area, and a small patch of dark pigmentation on distal portions of the dorsal lobe.

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Die neue Art heisst Parotocinclus fluminense.

Gruß,
Karsten

16.02.2017, 18:41	#1
Karsten S. Moderator Registriert seit: 14.08.2005 Ort: Ludwigsburg Beiträge: 5.325	New species of Parotocinclus (Siluriformes: Loricariidae) from coastal drainages of Rio de Janeiro, southeastern Brazil *New species of Parotocinclus* (Siluriformes: Loricariidae) from coastal drainages of Rio de Janeiro, southeastern Brazil Fábio F. Roxo, Bruno F. Melo, Gabriel S. C. Silva, Claudio Oliveira Abstract** A new species of Parotocinclus is described from tributaries of rio São João, an Atlantic coastal river of Rio de Janeiro, southeastern Brazil. The new species is distinguished from its congeners by the possession of a triangular patch of dark pigmentation on the anterior portion of the dorsal-fin base, a fully developed adipose fin, complete exposure of the ventral surface of the pectoral girdle, and a distinctive pigmentation pattern of the caudal fin. The caudal fin has a hyaline background with a large black blotch covering its anterior portion, tapering irregularly through distal portions of the ventral lobe with a hyaline rounded area, and a small patch of dark pigmentation on distal portions of the dorsal lobe. -- Die neue Art heisst Parotocinclus fluminense. Gruß, Karsten __________________ Parotocinclus britskii, P. haroldoi, Corydoras bicolor, C. boesemani, C. coppenamensis, C. guianensis, C. nanus, C. punctatus, Harttiella crassicauda, Paralithoxus gr. bovalli, P. plallidimaculatus, P. planquetti, P. surinamensis, Pseudancistrus kwinti,...

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