Denticetopsis
praecox (Ferraris & Brown, 1991) |
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Image contributors
to this species: |
Robin Warne (2) |
ScotCat
Sources: |
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Other Sources: |
 
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Relevant Information: |
Denticetopsis praecox is
described from the Río Baria system at the base of Cerro
de la Neblina, southern Venezuela. This species is most similar
to C. plumbea (Schultz, 1944), from the Río Orinoco
system but has fewer vertebrae, a greater number of branchiostegal
rays, and a colour pattern otherwise unknown in the family. Dorsal
spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays:
25 - 30; Vertebrae: 39 - 40. Readily distinguished from other
members of the genus by its color pattern consisting of a dark
brown dorsum, speckled to dark sides, light venter, pale fins
and a large dark spot on the basal half of the dorsal fin. Among
the smallest species in the family, maturing between 30-40 mm
SL. Feeds mostly in their natural habitat on aquatic insects.
specimens of Denticetopsis praecox were captured in a
cobblepebble habitat of black water streams that ranged in pH
from 4.3-5.0. |
Common Name:
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None |
Synonyms: |
Pseudocetopsis praecox |
Family: |
Cetopsidae |
Distribution: |
South America: Venezuela;
Baria River, Upper Negro River basin. Type locality:
Neblina base camp, Río Mawarinuma of the Río Baria
drainage, Territorio Federal Amazonas, southern Venezuela, 0º55'N,
66º10'W, elevation 120 m. |
Size: |
5.5cm. (2¼ins) |
Temp: |
22-26°c (71-79°f ) |
p.H. |
5.0-6.5. |
Reference: |
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.
Ferraris, C.J. Jr., 2007. Checklist of catfishes,
recent and fossil (Osteichthyes: Siluriformes), and catalogue
of siluriform primary types. Zootaxa 1418:1-628. |
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