Amaralia oviraptor Friel, Carvalho, 2016

Fig. 18

Body depressed anteriorly, compressed posteriorly; greatest depth contained 6.5 to 10, caudal peduncle depth 9.1 to 10.5 and body width 4.0 to 4.5 times in SL; snout length 3.1 to 4.3, horizontal orbital diameter 7.8 to 14.3 and least interorbital width 2.6 to 3.9 in HL. Mouth subterminal. Dorsal fin with I,2 rays, pectoral fin with I,5 or 6 rays, pelvic fin with 6 rays and anal fin with 5 or 6 rays (Friel, Carvalho, 2016). Ground color brown; series of light-beige spots on distal portions of tubercles; fins dark-brown with light-beige distal margins.

Maximum standard length. 122.8 mm.

Biological data. Lives in the bottom of lagoons, and feeds both on eggs and developing embryos of other catfishes (Friel, 1994; 2003).

Distribution. Paraná-Paraguay system.

Remarks. Amaralia oviraptor was identified as Amaralia sp. by Graça, Pavanelli (2007). Friel, Carvalho (2016) described the new species from the Paraná-Paraguay system.