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Show 164 MR. C. TATE REGAN ON SOUTH-AMERICAN [Mar. 7, Caudal peduncle 1^ as long as deep. Brownish ; a dark longitudinal band from tip of snout through eye to extremity of caudal; upper part of body with traces of dark cross-bars ; a dark oblique stripe below the eye; a dark ocellated spot on the base of the caudal, just above the lateral line ; dorsal with longitudinal series of greyish spots; caudal with a dark lower margin. 11. Amazon ; R. Paraguay ; Eastern Brazil. 1. (146 mm.) R. Parana. Mr. Salinin. 2. (167 mm.) Descalvados, Matto Grosso. Dr. Ternetz. 9 . C r e n ic ic h l a a c ut ir o str is . (Plate X IV . fig. 3 .) Crenicichla acutirostris Giinth. Cat. Fish. iv. p. 307 (1862) ; Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 384 (1904). Depth of body nearly 6 in the length, length of head 3|. Diameter of eye in the length of head, length of snout 2J, interorbital width 4|. Nostril a little nearer to eye than to tip of snout. Maxillary not extending to below the eye; depth of prfeorbital nearly | the diameter of eye. Anterior teeth forming 7 series in the upper jaw, 4 in the lower. 9 gill-rakers on the lower part of anterior arch. Scales denticulated, except on the head, the lower parts of thorax and abdomen and anteriorly above 13 the lateral line, 125 113 in a longitudinal series below the lateral line, 7 between last dorsal spine and lateral line, 5 between upper and lower lateral lines. Lateral line 264-14. Dorsal X X IV 14, the spines subequal from about the tenth, the last § the length of head. Anal III 11. Pectoral as long as ventral, a little more than | the length of head. Caudal peduncle a little longer than deep. Brownish, with 10 dark cross-bars on the upper part of the side ; anal with a narrow dark edge. River Cupai. 1. (217 mm.) type of the species. R. Cupai. 10. C r e n ic ic h l a m u l t isp in o sa . Crenicichla multispinosa Pellegr. Bull. Mus. Paris, 1903, p. 124, and Mem. Soc. Zool. France, xvi. 1903, p. 380, pi. vi. fig. 3 (1904). Depth of body 5^ in the length, length of head 3-|. Diameter of eye nearly 6 in the length of the head, length of snout 2|-, interorbital width 34-. Nostril nearer to eye than to extremity of snout. Maxillary not extending to below the eye ; depth of prse-orbital 4 the diameter of eye. Anterior teeth forming 8 series in the upper jaw, 4 in the lower. 10 or 11 gill-rakers on the lower part of anterior arch. Scales denticulated, except on the head, the lower parts of thorax and abdomen and above the upper lateral line, 118 102 in a longitudinal series below the lateral line, 9 between last dorsal spine and lateral line, 5 between upper and lower lateral lines. Lateral line 27 + 14. Dorsal (X X IV ) X X V 13 (14), the spines subequal from about the eighth, the last ^ the length of head. Anal III 9 (10). Pectoral J-, ventral \ the length of the head. Caudal peduncle a little longer than deep. Brownish, with numerous small white spots on the |