252 



BULLETIN OF THE BUREAU OF FISHERIES. 



dark brown Hue as long as eyeball is deep, not as wide as pupil, below eye extending vertically down- 

 ward, and a trifle broader than above, nearly as broad as pupil. 



A bottom species moving very quickly from spot to spot, about 6 inches at a time. Frequently 

 attacked by Pomacenlrus fuscits. Found about coral heads, Bush Key. (T.) 



198. Elacatinus oceanops Jordan. 



Tortugas, west shoal, among coral heads at depth of <> feet. Always clinging to brain coral; 



endeavoring to shelter itself in bottom of groves. When hunted, it goes fr one head to another, 



swimming very curiously, in a zig-zag course, stopping at each turn, moving with greal speed between 

 stops and coming to a perfect standstill at each change of course, t T. i 



Family OPISTHOGNATHID&. 



199. Opisthognathus macrogrnathus Poey. 



Reported by Jordan in 1884, from Garden Key. as Opisthognathus scaphiurus. 



200. Gnathypops maxillosa (Poey). 

 Reported by Bean in 1883, from Garden Key. 



201. Gnathypops aurifrons Jordan & Thompson, new species, i Fig. 6. ) 



Head 3.5 in length; depth 3.85 (4.55 with caudal); D. 26; A. IS; P. 18; scales 42, 106; eye 2.90 in 

 head, ..."ill times length of snout; maxillary 1.60; longest dorsal ray 1.50; caudal 1.15; longest anal ray 

 1.65; pectoral 1.60; ventral 1.15 times length of head. 



u 



Fig. 4. — Gnathypops aurtfrons Jordan & Thompson, new species. Type. 



Body oblong, moderately compressed, deepest at the ventrals; head moderate, the short snout 

 abruptly declined; eye large; maxillary moderate, its tip about half the eye's diameter behind the 

 eye; teeth long and sharp, some of the posterior ones on lower jaw curved hack; vomer with teeth; 

 lower jaw slightly included. Head naked; body covered with very small scales, the nape naked; 

 lateral line running very high, cea-iiiL r jnst behind the middle of the dorsal; dorsal tin high, its posterior 



rays highest; no distinct spines; caudal truncate; anal high, similar to dorsal; pectoral i lerate, 



rounded, almost reaching vent. Ventral very long, its second ray ending in a filament as long as the 

 rest of th<' tin, and reaching well beyond front of anal. 



Color in life, according to a sketch by Doctor Thompson, hyaline green; a large golden patch on 

 top of head; fins faintly greenish; a narrow dark edge to the dorsal. In spirits, plain pale olive with 

 the dark streak on the edge of the dorsal fill. 



A single specimen not quite two inches long. No. 8413, Stanford University Museum, was taken 

 by Dr. Thompson on the coral reef a l Garden Key. 



The species is nearest Gnathypops mystacina, hut differs in the larger number of anal rays, the 

 lateral line, the higher rays, and in numerous minor respects. 



