Mattos, J. L. O., W. J. E. M. Costa & C. de S. Gama, 2008
A new miniature species of Ammoglanis (Siluriformes: Trichomycteridae) from the Brazilian AmazonAbstract
Ammoglanis amapaensis, new species, is described from three drainages of the Brazilian Amazon: Jari, Amapari and Araguari. It is distinguished from other congeners by having nostril barbel long, reaching the posterior margin of the eye, cranial fontanel absent, and the anterior portion of the palatine with a small ossification. It seems to be more closely related to A. pulex, with which it shares a scythe-shaped lachrymal with an anterior facet and a short ventro-laterally directed process in the palatine.
Mattos, José L. O., Wilson J. E. M. Costa and Cecile de S. Gama
Ichthyol. Explor. Freshwaters, Vol. 19, No. 2, pp. 161-166, 2008