Description:
The combination of the absence of a spinelet associated
with the dorsal fin, the absence of spines on the
dorsal and pectoral fins, and the possession of a
single row of teeth on the vomer distinguishes Cetopsis
from the other genera in the Cetopsinae.This
species can be distinguished from all of its congeners
by the combination of the presence of an eye, the
conical teeth on the vomer and the dentary, the rounded
posterior nares that is distinctly separated from
the contralateral nares by a distance greater than
the width of the posterior nares, the dark humeral
spot, the pattern of a darkly pigmented pectoral and
pelvic fins other than for thin, clear margins, and
the possession of 23 to 25 total anal-fin rays.
Common
Name:
None
Synonyms:
None
Family:
Cetopsidae
Distribution:
South America:
Upper Amazon River basin. Type locality:
Peru. Departamento de Ucayali, Provincia Coronel Portillo.
Río Tambo, Río Ucayali basin, Pucallpa,
Atalaya (8º23'S, 74º32'W).
Size:
17.0cm. (6¾ins)
Temp:
22-28°c (71-83°f )
p.H.
6.0-7.0.
Reference:
Cetopsis parma Oliveira,
Vari & Ferraris, 2001 observed in Ecuador by jonafish
(licensed under creativecommons.org). Ferraris, C.J. Jr., 2007. Checklist
of catfishes, recent and fossil (Osteichthyes: Siluriformes),
and catalogue of siluriform primary types. Zootaxa
1418:1-628. Vari, R.P., C.J. Ferraris,
Jr. and M.C.C. de Pinna
2005 The neotropical whale catfishes (Siluriformes:
Cetopsidae: Cetopsinae), a revisionary study. Neotrop.
Ichthyol. 3(2):127-238.
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