Pimelodella serrata

description

Below we provide a morphological description of Pimelodella serrata, based on examination of 12 specimens (1 c & s) from Colombia, and photographs and radiographs of the holotype (housed at FMNH). Morphometric data summarized in Table 2. Body moderately deep and elongated, deeper at dorsal-fin origin. Dorsal profile of body rises straight and upward to supraoccipital process origin, then convex to dorsal-fin origin; dorsal-fin base convex, straight and downward from posterior end of dorsal fin to adipose-fin end, and concave along caudal peduncle. Ventral profile of body straight to slightly convex from jaw tip to pelvic-fin origin, slightly concave between pelvic fin and anal-fin origin, anal-fin base straight and upward, and concave along caudal peduncle (Fig. 3). Head conical. Mouth subterminal, upper jaw more pronounced than lower jaw. Premaxilla with two or three rows of villiform teeth and dentary with three or four rows of similar teeth. Anterior naris tubular. Posterior naris rounded, slightly closer to anterior ocular margin than to anterior naris, and anteromedially bordered by a fleshy margin. Nares disposed in a rectangular or slightly trapezoidal arrangement. Barbels t

New records of Pimelodella (Siluriformes, Heptapteridae) from Colombia for the Amazon River basin, and redescription of P. serrata