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Hoplomyzon papillatus Stewart, 1985

 

Image contributors to this species:

Nathan Lujan (2)

ScotCat Sources:

Etymology = Genus  Etymology = Specific name

Other Sources:

Search  Fishbase  Wikipedia Catalog of Fishes  Global Biodiversity Information Facility  FishNet2  iNaturalist

Relevant Information:

Description: Distinguished from all known aspredinids by having five stout papillae along upper lip and mentum with two pairs of longer barbels and about 36 short, papillae-like barbels. Distinguished from all other species of Hoplomyzontini by having snout deeply emarginate at midline, appearing bilobed. Differs further from its only congener in having (1) no slender rictal barbel; (2) dorsal-fin rays i,3,i (vs. i,6); (3) maxillary barbel relatively short, not extending posterior to pectoral-fin origin ( 1 3% vs. 1 9.5% standard length, extending posteriorly beyond pectoral-fin origin); (4) lateral-line scutes in zig-zag pattern (vs. rela- tively straight line); (5) second pelvic-fin ray longest, extending posteriorly as short filament (vs. third ray longest and not extended); and (6) dorsal and anal fins attached posteriorly to body midline by membranes (vs. not attached). Habitat: Ecuador, Napo Province, Rio Aguarico,about 1 km upstream from confluence with Rio Shushufindi, lat. 0°17'S, long. 76°25.4'W. Etymology: From the Latin papillatus, with buds, in reference to the numerous short, papillae like mental barbels.

Common Name:

None

Synonyms:

None

Family:

Aspredinidae

Distribution:

South America: Napo and Portuguesa River basins. Type locality: Rio Aguarico,about 1 km upstream from confluence with Rio Shushufindi, lat. 0°17'S, long. 76°25.4'W.

Size:

1.7cm. (¾ins)

Temp:

-

p.H.

-

Reference:

Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p.
Froese, R. and D. Pauly. Editors. 2022. FishBase. World Wide Web electronic publication. www.fishbase.org, version (04/2022).
Stewart, D.J. 1985. A review of the South American catfish tribe Hoplomyzontini (Pisces, Aspredinidae) with descriptions of new species from Ecuador. ResearchGate.



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Family: Aspredinidae  Back to Ident-A-Cat  Click on Thumbnails

Click for full imageHoplomyzon papillatus
Dorsal view
Click for full imageHoplomyzon papillatus
Ventral view

 

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