LAMONEMA GRACILLIPES. 187 
Lemonema gracillipes sp. n. 
Plate XLII. figs. 1, 1a. 
Br. r. 7; D. VI, 63-68; A. 61-64; V. 2 (5-6); P. 21-23; LI. 171; Ltr. 
14 + 39 ca. 
Elongate, compressed behind the shoulders, tapering to very slender 
posteriorly ; body cavity less than two fifths of the total. Head moderate, 
somewhat depressed, as broad as high, little less than one fourth of the total 
length, convex on the cheeks and in front of the nape; crown flattened on 
the interorbital space and forward. Snout short, broad, rounded, blunt; 
three fourths as long as the eye, in length equal to the interorbital width. 
Nostrils close together immediately in front of the eye, nearly equal in 
size, anterior with a short tubular valve. Eye large, prominent, one and 
one third times the length of the snout or the interorbital width, two 
sevenths as long as the head. Mouth medium, cleft extending below the 
eye; maxillary reaching a vertical from the middle of the eye, or a trifle 
farther. Teeth small, in villiform bands on the jaws, and in a small group 
on the head of the vomer. Barbel more than half as long as the eye. Four 
gills, a slit behind the fourth; rakers slender, longest half as long as the 
eye, 9 + 14 on the forward edge of the first arch. Eight pyloric czeca, 
Base of first dorsal short, hardly three fifths of the eye; longest ray 
with its filament half as long as the head, first ray above the base of the 
pectoral. Second dorsal immediately behind the first, more developed than 
the anal; hinder rays reaching to the bases of the median caudal rays. 
Anal fin not so deep as the dorsals, longest rays near the vent, posterior 
rays not reaching as far back as those of the dorsal, shortest rays near the 
middle of the fin, origin below the twelfth ray of the second dorsal. Caudal 
narrow, separated from dorsal and anal, hind margin convex, length about 
one and a half times that of the eye. Pectorals short, comparatively broad, 
pointed. Ventrals slender, second ray little longer than the head, first ray 
shorter, free for more than half of its length ; rudimentary rays visible only 
by dissection, most developed in the young. 
Seales small, covering body and head, absent from part of the snout, in 
fourteen series above the lateral line and thirty-eight below it, one hundred 
and seventy-one scales on the line from head to tail. Lateral line distinct 
to the caudal. 
