Journal Article

Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela

Henschel, E., Lujan, N.K. and Baskin, J.N.

Record Number:
5429
Year:
2020
Journal:
Journal of Fish Biology
Pages:
1481-1490
Volume:
97
Abstract:
A new species of the sand-dwelling catfish genus Ammoglanis is described from a marginal habitat of the lower Atabapo River, a left-bank blackwater tributary of the upper Orinoco River in Amazonas, Venezuela, adjacent to the border with Colombia. Ammoglanis natgeorum is distinguished from all congeners by trunk pigmentation pattern consisting of scattered ventral chromatophores concentrated around the analfin base and numerous additional meristic and anatomical characteristics. A. natgeorum is the second species of Ammoglanis described from the Orinoco River basin after Ammoglanis pulex, and several shared character states (e.g., eight total dorsal-fin rays, overall coloration pattern and presence of two finger-like papillae posterior to chin) suggest that it is more closely related to Ammoglanis obliquus (from the central Amazon basin) and A. pulex than to other congeners. KEYWORDS blackwater, Orinoco basin, psammophily, riverine infauna, Sarcoglanidinae, taxonomy
Times Cited:
6
Related Records:
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Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela
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A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil
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A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil
Henschel, E., Bragança, P.H.N., Rangel-Pereira, F. and Costa, W.J.E.M. (2020)
A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil
Henschel, E., Lujan, N.K. and Baskin, J.N. (2020)
Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela
Henschel, E., Lujan, N.K. and Baskin, J.N. (2020)
Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela
Henschel, E., Lujan, N.K. and Baskin, J.N. (2020)
Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela
Henschel, E., Bragança, P.H.N., Rangel-Pereira, F. and Costa, W.J.E.M. (2020)
A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil
Henschel, E., Lujan, N.K. and Baskin, J.N. (2020)
Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela
Henschel, E., Bragança, P.H.N., Rangel-Pereira, F. and Costa, W.J.E.M. (2020)
A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil
Henschel, E., Lujan, N.K. and Baskin, J.N. (2020)
Ammoglanis natgeorum, a new miniature pencil catfish (Siluriformes: Trichomycteridae) from the lower Atabapo River, Amazonas, Venezuela