Ammoglanis obliquus

Henschel, Bragança, Rangel-Pereira and Costa 2020







Holotype: UFRJ 12477 14.1 mm SL.

Paratypes: UFRJ 12448 (25) 12.0–15.5 mm SL, UFRJ 12479 (4) 12.8–13.2 mm SL, UFRJ 12478 (4) 13.0–14.1 mm SL, INPA 59277 (2) 12.8–12.9 mm SL.


Known only from the type locality: Sandbank at small stream, Preto da Eva River drainage, Rio Preto da Eva municipality, Amazonas River, Amazonas State, Brazil (02°46'27"S, 59°38'58"W) altitude about 20 m.


Interstitial (psammophilic).

Biological Notes

Colouration in life. Head integument and musculature transparent, pinkish colouration from blood vessels visible by transparency.

Conservation Status


Museum Holdings

As above only.

Internet Resources


Key References

Costa, W.J.E.M. Journal Article 1994 A new genus and species of Sarcoglanidinae (Siluriformes: Trichomycteridae) from the Araguaia basin, central Brazil, with notes on subfamilial phylogeny
de Pinna, M.C.C. and Winemiller, K.O. Journal Article 2000 A new species of Ammoglanis (Siluriformes: Trichomycteridae) from Venezuela
Mattos, J.L.O., Costa W.J.E.M. and Gama, C. de S. Journal Article 2008 A new minature species of Ammoglanis (Siluriformes: Trichomycteridae) from the Brazilian Amazon
Adriaens, D., Baskin, J.N. and Coppens, H. Book Section 2010 Evolutionary morphology of trichomycterid catfishes: about hanging on and digging in
Costa, W.J.E.M., Mattos, J.L.O. and Santos, A.C.A. Journal Article 2019 Ammoglanis multidentatus, a new miniature sanddwelling sarcoglanidine catfish with unique osteological features from northeastern Brazil (Siluriformes: Trichomycteridae)
Henschel, E., Lujan, N.K. and Baskin, J.N. Journal Article 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. Journal Article 2020 A new psammophilic species of the catfish genus Ammoglanis (Siluriformes, Trichomycteridae) from the Amazon River basin, northern Brazil