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Show 166 MR. C. TATE REGAN ON SOUTH-AMERICAN [Mar. 7, Diameter of eye 4i-5| in the length of head, length of snout 3-3^, interorbital width Nostril nearly equidistant from eye and tip of snout. Maxillary extending to below anterior margin of eye; depth of prseorbital |-§- the diameter of eye. Anterior teeth forming 6 or 7 series in the upper jaw, 4 or 5 in the lower. 10-12 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 the lateral line, 120-130 3^qr0' 106-113 in a longitudinal series below the lateral line, 10 or 11 between last dorsal spine and lateral line, 4-6 between upper and lower lateral lines. Lateral line 25-27 +14-15. Dorsal X X I I - X X I I I 15-17, the spines subequal or only slightly increasing from about the seventh, the last -g- the length of head. Anal III 10-12. Pectoral f-f, ventral f the length of head. Caudal peduncle as long as or a little longer than deep. Brownish ; a dark spot above the pectoral and another on the middle of the basal part of caudal; dorsal and anal with a dark edge and sometimes a light intramarginal band. Brazil; Guiana; Venezuela. 1, 2. (159 and 250 mm.) British Guiana. Sir R. Schomburgk. 3. (2 6 1 111m.) R. Capin. 4. (255 mm.) R. Essequibo. Mr. Ehrhardt. 13 *. C r e n ic ic h l a c in c t a , sp. n. Crenicichla brasiliensis, var. fasciata (non Cychla fasciata Schomb.) Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 383, fig. (1904). Depth of body 4i in the length, length of head 3i. Diameter of eye 4| in the length of head, length of snout 3-i-, interorbital width 3|. Nostril a little nearer to eye than to tip of snout. Maxillary extending to below anterior margin of eye; depth of prpeorbital i the diameter of eye. Anterior teeth forming 7 series in the upper jaw, 4 in the lower. 10 gill-rakers on the lower part of anterior arch. Scales denticulated, except on the head, the lower part of thorax and abdomen and anteriorly above the lateral 20 line, 152 ^ , 120 in a longitudinal series below the lateral line, 11 between last dorsal spine and lateral line, 6 between upper and lower lateral lines. Lateral line 28 +1 7 . Dorsal X X I I I 15, the spines subequal from the tenth, the last ^ the length of head. Anal III 12. Pectoral ventral g the length of head. Caudal peduncle 1| as long as deep. Olivaceous, with 9 or 10 dark vertical cross-bars on the upper half of the body ; a dark longitudinal stripe from eye to above the pectoral; soft dorsal with a few large dark spots; caudal brownish, with round or oval light yellowish spots and with a blackish spot 011 the basal part, just above the lateral line. Marajo Island ; Para. 1. (172 mm.) type of the species. Para. Dr. E. A . Goldi. * The name fasciata is preoccupied in this genus by the Cychla fasciata of Schomburgk, which I regard as a synonym of Crenicichla johanna Heck. |
