VIVIPAROUS BLENNY. 275 



length of head, body, and tail, is as one to six : the head 

 more elongated than in the last species, the muzzle more 

 protruded and sharper ; the upper jaw the longest ; the teeth 

 short, conical, sharp, with a second row round the front only 

 of the lower jaw ; the lips fleshy ; the eyes small, lateral, 

 irides blue ; the nostrils half-way between the inferior edge 

 of the upper lip and the edge of the orbit, each nostril with 

 a small membranous tubercle ; numerous mucous pores above 

 the lips ; cheeks flat ; the membranous free edge of the oper- 

 culum ending in an angle directed backwards : the pectoral 

 fins large, broad, rounded, nearly as long as the head, and 

 reaching half-way from the operculum to the commencement 

 of the anal fin ; the membrane of one operculum not conti- 

 nuous under the jaw to the other as in the true Blennies : the 

 ventrals small, narrow, and pointed, about one-third the 

 length of the pectorals, and placed in advance of them ; the 

 investing membrane being dissected off", exposes three branch- 

 ed rays. 



The dorsal fin commences at the nape, over the angle 

 of the operculum ; the membrane investing and connecting- 

 its rays is too dense to admit of their number being ascer- 

 tained with certainty or facility. The edge of the dorsal 

 fin is straight till within a short distance from the tail, 

 where a slope or emargination takes place. The form of 

 the tail is lanceolate, but not distinguished by any separation 

 from the dorsal or anal fin. 



The anal fin in continuation underneath, in this specimen 

 of seven inches, is four inches long ; the vent immediately 

 in advance of its commencement. 



The numbers of the fin-rays are in the dorsal, anal, and 

 caudal fin, as united, 



About 148 : P. 18 : V. 3. 



The general form of the body is lanceolate, tapering gra- 



T 2 



