Cetopsis baudoensis can be distinguished from
all of its congeners by the combination of the presence
of an eye, the conical teeth on the vomer and dentary,
the rounded posterior nares which is distinctly separated
from the contralateral nares by a distance greater
than the width of the posterior nares, the wide mouth
with its width equal to one-half of HL, the absence
of a dark humeral spot, the absence of a posteriorly-rounded,
variably-developed, bilobed patch of dark pigmentation
at the base of the caudal fin, the absence of a band
of dark pigmentation along the distal portions of
the anal fin, the possession of small dark spots on
the lateral and dorsal surfaces of the body, the absence
of eye-size or larger spots on the body, the possession
of 9, rarely 10, pectoral-fin rays, 18 to 20 preanal
vertebrae, 14 to 16 precaudal vertebrae, 33 to 35
caudal vertebrae, 47 to 49 caudal vertebrae, 20 to
22 branched anal-fin rays, and 23 to 27 total anal-fin
rays. Habitat: It lives on highly
turbid, white water rivers over clay bottoms with
logs in the main riverbanks and clay and leaves in
the lower parts of creeks. Specimens were collected
at depths of 2m or less and at elevation of less than
50m asl (Vari et al. 2005).
Remarks: Cetopsis baudoensis
has a very restricted range; its extent of occurrence
is less than 270 km². The single location where
it occurs is affected by deforestation, but it is
not certain whether this impact is leading to a continuing
decline in habitat quality. Hence, the species is
listed as Near Threatened, as it almost qualifies
for listing as Endangered under criterion B1ab(iii)
Pacific versant, Baudó River basin in Colombia.
Type locality: Quitasol, Baudó, western
22-28°c (71-83°f )
Ferraris, C.J. Jr.,
2007. Checklist of catfishes, recent and fossil (Osteichthyes:
Siluriformes), and catalogue of siluriform primary
types. Zootaxa 1418:1-628. Froese, R. and D. Pauly. Editors.
2021. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 06/2021 ). Sanchez-Duarte, P. & Mesa-Salazar,
L. 2016. Cetopsis baudoensis. The IUCN Red List of
Threatened Species 2016. Vari, R. P., C. J. Ferraris Jr. & M. C.
C. de Pinna. 2005. The Neotropical whale
catfishes (Siluriformes: Cetopsidae: Cetopsinae),
a revisionary study. Neotropical Ichthyology 3:127-238.