Synodontis acanthoperca, a new species from the Ogôoué River sys- tem, Gabon with comments on spiny ornamentation and sexual dimorphism in mochokid catfishes (Siluriformes: Mochokidae)
Authors
JOHN P. FRIEL1 & THOMAS R. VIGLIOTTA2 Cornell University Museum of Vertebrates, 159 Sapsucker Woods Road, Ithaca, NY 14850-1923, USA; 1 Email: jpf19@cornell.edu, 2 trv2@cornell.edu
FIGURE 1. Dorsal, lateral and ventral views of Synodontis acanthoperca, holotype, CU 89005, male, 44.1 mm SL; Gabon, Haut-Ogôoué Province, Ogôoué River at and below the Rapids of Massoukou (Masuku). Photo by T.R. Vigliotta.
Abstract
Synodontis acanthoperca, a new species of mochokid catfish, is described from rapids within the Ogôoué River system of Gabon. This relatively small species (<50 mm SL) is distinguished from all congeners by a distinctive pigmentation pattern that includes a pair of dark patches on the caudal fin and by the presence of hypertrophied opercular spines in sexually mature males.
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