762 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
no conspicuous posterior canines; maxillary not produced backward 
from angle of mouth; gill-membranes united, free from the isthmus. 
Dorsal fin long and low, chiefly composed of spines; some of the ante- 
rior spines often different from the others, longer or shorter, and set 
farther apart; anal fin low, with 2 spines; ventral fins jugular, of 1 
spine and 2 or 3 rays; caudal fin truncate; branchiostegals G; air- 
bladder and ])yloric coeca absent; viviparous. Inhabitiug rock-pools 
among algce, in warm seas. Our two species are very different, and 
represent opposite extremes in this large and varied genus. (xAAo^, a 
name of some sleepy fish; from xXtvTj, a bed.) 
a. Nape with a fringe of filaments; teeth on vomer and palatines; scales moderate. 
{Labrosomus* Swaiusou.) 
*1163. C. siucIiipiaiBiis Qnoy & Gaimard. 
Eeddish browu, sometimes with vertical bands; a black spot on 
opercle, which is often edged with white; cheeks and fins reticulate or 
dotted. Body oblong, rather robust; head naked, thick, short, not very 
obtuse anteriorly, compressed above; month rather large, the maxilla- 
ries not prolonged backward, extending to opposite the posterior part 
of eye, 2^ in head; teeth on jaws, vomer, and palatines; front teeth of 
jaws conic, strong; eyes large; iuterorbital space very narrow; each 
side of neck with a long series of hair-like filaments, nearly as long as 
eye; orbital tentacle short and broad, multifid; nostrils with a tufted 
barbel; lower jaw slightly projecting, its posterior teeth sometimes re- 
curved; pectorals a little shorter than head, reaching vent. Dorsal 
spines rather slender, the three anterior spines scarcely shorter than 
the others; all the spines lower than the soft rays; dorsal fin com- 
mencing near the nape, the spinous portion long; soft rays higher 
than the spines; caudal small; pectorals rather large; veutrals mod- 
erate; gill-membranes broadly united, free from the isthmus; lateral 
line complete, high anteriorly, then abruptly decurved; membranes 
of vertical fins scaly; scales not very small, cycloid. Head 3^; depth 
3^. D. XVIII, 12; A. II, 17; Lat. 1. 70. L. 8 inches. West Indies; 
occasional on our South Atlantic coast. • 
(Clinus nuchipinnis Quoy & Gaimard, Voy. Urania Zodl. 255; CJinus pectinifer Ciiv. 
& Val. xi, 374: Lepisoma cirrliosum Dekay, N. Y. Fauna, Fish. 1842, 41: Clinus nitchi- 
pinnis Giinther, iii, 262: Labrosomus pectinifer GiW, Proc. Acad. Nat. Sci. Phila. 1860, 
105.) 
*Swain8on, Class. Fish, ii, 75, 1839: type Clinus pectinifer Cuv. & Val. = C/in«s nu- 
chipinnis J. & G. (Labrus; d&jua, body.) 
