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Show 282 MR. B O U L E N G E R O N FISHES FROM ECUADOR. [Mar. 1, 27. LEPTAGONIATES STEINDACHNERI, sp. n. (Plate XXIII. fig. 3.) D. 10. A. 70. V. 8. P. 12. L. lat. 47. L. transv. \. The depth of the body is one fourth of the total length (without caudal), the length of the head one sixth. Mandible strongly projecting beyond the mouth ; maxillary not reaching below the anterior border of the eye; praemaxillary teeth 15, maxillary (on each side) 11, mandibular 14; mandibular teeth largest, maxillary smallest. The diameter of the eye equals nearly two fifths the length of the head, and exceeds the width of the interorbital space. The pectoral fins reach nearly the extremity of the ventrals, which are small; the dorsal originates above the 23rd anal ray. Colourless; sides of head and a lateral band above the lateral line silvery. Total length 95 millim. A single specimen from Sarayacu. 28. ANACYRTUS PAUCIRADIATUS, Gthr. Canelos. 29. ANACYRTUS KNERII, Stdr. Anacyrtus knerii, Steind. Denkschr. Ak. Wien, xxxix. 1879, p. 65. Cynopotamus humeralis, Kner, nee Val. Canelos. GYMNOTID^E. 30. STERNARCHUS ALBIFRONS, L. Canelos. 31. STERNARCHUS (RHAMPHOSTERNARCHUS) CURVIROSTRIS, sp. n. (Plate XXIV.) Snout produced into a long narrow tube, which is bent downwards ; the diameter of this tube, halfway between its extremity and the eye, is one eighth of the length of the snout. The distance between the eye and the base of the pectoral equals two thirds the length of the snout. Mouth very narrow,' its cleft not twice as long as the diameter of the eye. Vent below the eye. Anal commencing nearer the eye than the gill-opening; 185-188 rays. The greatest depth of the body is contained once and three fifths in the length of the head, and five times in the total. Scales on the upper and lower parts very small, those in the middle of the side of moderate size. Uniform brown. Total length 125 millim. Two specimens from Canelos. 32. STERNOFYGUS CARAPUS, L. Canelos. 33. CARAPUS FASCIATUS, Pall. No particular locality. |