FISHES OF HAWAIIAN ISLANDS. 
487 
rounded; median rays 1.5 in head; middle rays of anal longest, 2 in head; median pectoral rays 
longest, 1.8 in head, the lower 14 rays normal, above these numerous fine silk-like rays; median rays 
of ventral 2 in head; basal membrane with a well-developed lobe on each side; scales ctenoid, covering 
body and top and sides of head, those on posterior part of body and on caudal peduncle but little 
enlarged, those on head smaller than body scales. 
Color in alcohol, plain chestnut brown, pale below; a few darker mottlings on side of body; ventral 
and pectoral fins dusky brown, ventral pale. 
Fig. 214. — Chlamydes laticeps Jenkins; from the type. 
This description is based on a single specimen, 1.5 inches long, taken by Doctor Jenkins in the 
coral rocks on the reef in front of Honolulu. 
Chlamydes laticeps Jenkins, Bull. U. S. Fish Comm,, XXII, 1902 (Sept. 23, 1903), 503, reefs at Honolulu (type, No. 50716, IT. S. 
N. M,; coll. 0. P. Jenkins). 
Genus 239. GNATHOLEPIS Bleeker. 
This genus agrees with Rhinogobius in all respects, except that the cheeks and opercles are covered 
with large scales; pectoral with silky rays; dorsal spines 6; tongue rounded. 
Gnatholepis Bleeker, Esquisse Syst. Nat. Gobiod. in Arch. Neerl. Sc. Soc. Holl. Harlem, IX, 1874, 318 ( Gobius anjerensis). 
Hazeus Jordan & Snyder, Proc. U. S. Nat. Mus., XXIV, 1902, 51 ( otakii ). 
403. Gnatholepis knighti Jordan & Evermann. “Oopu.” Plate 58. 
Head 3.5 in length; depth 4.25; eye 3.8 in head; snout 3.6; width of mouth 2.5; interorbital 2.25 
in eye; D. vi-12; A. 12; P. 16; V. 5.5; scales 32-9. 
Body elongate, compressed, not depressed in front, greatest depth at the middle of belly; head 
elongate, its depth 1.25 in its length, its width 1.5; snout oblique, blunt, broad; upper profile of the 
head obtuse, with a prominence over eye in front; mouth rather broad, the maxillary not reaching 
posteriorly to below front rim of orbit; lips rather thin; teeth small, sharp, in narrow bands in jaws 
with an outer enlarged series; no teeth on vomer or palatines; interorbital space very narrow, level; 
nostrils small, close together in front of eye, anterior with flap of very short, fleshy cirri; eye high, 
small, a little anterior; gill-opening restricted to side, nearly vertical, its length 2.25 in head; scales 
large, finely ctenoid, and becoming much larger on posterior side of trunk; scales, small on belly in 
front of ventrals, cycloid; scales moderately large, cycloid on the upper part and side of head, head 
otherwise naked; dorsal fins well separated, spines flexible and with extremities in most cases free 
and filamentous; first 1.6 in head, fifth 1.7, last 2.7; soft dorsal long, last rays longest, first 1.7, last 
1.25; anal similar to the dorsal, but lower, first ray 2.8, last 1.25; caudal rounded, the median rays 
very long, a little longer than head; pectoral with upper median rays longest, all rather fine, about 
equal to length of caudal; ventrals rather large, frenum uniting in front, rather broad, length equal to 
pectoral; caudal peduncle compressed, length 1.2 in head, depth 2.25. 
