| OCR Text |
Show 278 MR. G. A. BOULENGER ON FISHES COLLECTED [Mar. 1, on the sides of the snout, the nape, and the pectoral fin, differs the much smaller size of the pectorals, which do not reach the base of the ventrals. I must add that the ventral and dorsal scutes of the three specimens before m e agree perfectly with the accurate figure of L. magdalena, Stdr. (Denkschr. Ak. Wien, xxxix. p. 74, and xii. p. 26, pl. vii. fig. 2). 14. ACESTRA KNERI, Stdr. Acestra hnerii, Steind. Denkschr. Ak. Wien, xlvi. 1883, p. 26, pl. vii. fig. 1. Canelos and Sarayacu. 15. BUNOCEPHALUS KNERI, Stdr. Bunocephalus hnerii, Steind. I. c. p. 9, pl. ii. fig. 2. Canelos. 16. TRICHOMYCTERUS KNERI, Stdr. Trichomycterus knerii, Steind. Sitzungsb. Ak. Wien, lxxxvi. i. 1882, p. 81, pl. v. fig. 1. Canelos. NANNOGLANIS, g. n. (Trichomycterina). Adipose fin present, large. Dorsal fin short, without pungent spine, placed nearly in the middle of the body and behind the ventrals fins ; anal short; caudal truncated. Teeth villiform, in broad bands in the jaws; palate toothless; cleft of tbe mouth moderate. No nasal barbel; one maxillary and two lateral mentals. Eyes directed upwards. Head covered with soft skin. No opercular or interopercular armature. Gill-openings wide, continuous across the throat. Ventrals six-rayed. 17. NANNOGLANIS FASCIATUS, sp. n. (Plate XXI. fig. 3.) D. 7. A. 8. P. 9. V. 6. The length of the head is one fifth of the total, the height of the body one ninth. The diameter of the eye is one third of the length of the snout and three fourths of the width of the interorbital space. The maxillary barbel extends to the middle of the pectoral, the outer mandibular not quite so far. The origin of the dorsal is in the middle between the end of the snout and the extremity of the adipose fin, which is as long as the head. Pectorals not quite reaching the base of the ventrals. Vent situated below the origin of the dorsal fin. Yellowish, with four broad brown, black-edged cross bands above ; the first is the broadest, and occupies the space between pectorals and ventrals ; the third is below the adipose fin; and the fourth, narrowest, at the base of the caudal; a dark brown line from the eye to the maxillary barbel. Total length 52 millim. Two specimens, without particular locality. |
