1892.] MR. G. A. BOULENGER ON A NEW BLENNIOID FISH. 583 



back of the neck is also black. A spot in the exact centre of the 

 forehead just above the meeting of the eyebrows is, however, pale 

 yellowish white. The pale cheeks and the pale sides of the neck 

 are in this species in just as striking contrast to the dark crown as 

 in S. hosei, and distinguish it equally from its near ally S. chryso- 

 melas. 



In the skull the differences are of course but slight, and many 

 specimens of each would be needed before any of them could be 

 claimed as genuinely differential characters. Comparing the type 

 skull of ^S'. everetti with that of S. hosei, the brain-case is longer 

 and more flattened, the orbits are more circular in outline, and the 

 length of the zygomata is decidedly greater. The development of 

 the fifth cusp to the last lower molar is veiy much the same in 

 both, i. e. much less than in S. cristatus and the majority of the 

 species, but much greater than in S. chrysomelas, a species remark- 

 able for the almost entire suppression of the cusp. 



Dimensions of the type, an adult female in skin : — Head and body 

 (c.) .550 millim., tail 6.iO. 



Skull — basal length 637, greatest length (gnathion to occiput) 

 94, greatest breadth 70, combined length of upper premolars and 

 molars 24, of molars only 162. 



The type specimen was obtained by Mr. Everett's hunters at an 

 altitude of about 3500 feet on Mount Kina-balu, in March 1892. 

 Mr. Hose's two specimens were killed at 3000 feet on Mount Dulit in 

 June. The species is therefore no doubt a purely mountain one, 

 and does not, like S. hosei, descend to the plains. This latter 

 species, however, also occurs at considerable altitudes on Mount 

 Dulit, but has not as yet been certainly found on Mount Kina-balu, 

 the skull from that mountain doubtfully referred by me to it in 

 1889 ' belonging very probably to S. everetti. 



Finally, I must of course admit the possibility of intermediate 

 specimens between S. hosei and S. everetti occurring, and the con- 

 sequent necessity for the reduction of the latter form to the rank of 

 a subspecies ; but in the absence of such intermediate forms and in 

 view of the great constancy in the coloration of S. hosei already 

 noted, it seems best to give a name to the striking variation from it 

 now described. 



2. Description of a new Blennioid Fish, from Kamtschatka. 



By G. A. BoULENGER. 



[Eeceived October 25, 1892.] 



Blenniophidium, g. n. 



Body elongate, compressed, covered with very small cycloid 

 scales. Mouth small, horizontal, protractile, with fleshy lips ; 

 small conical teeth in jaws and on palate. No opercular spine. 



1 T. c. p. 160. 



