VIVIPAROUS BLENXY. 



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 branched 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 separa- 

 tion 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 number of 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- 



