﻿405 



2. Stage with about 115 segments and 

 more than 7 teeth on each side of the 



jaws. Length 56 — 1 24 m m. 

 Anus near end of tail; their distance being 

 7,;^ — V20 '^^ total length. Elongate, height 8 — lO; 

 head 22 — 32. Head somewhat pointed, with large 

 olfactory pit situated before the eye, which goes 

 about 4'/4 times in length of head, and is much 

 smaller than its postorbital part and about half 

 length of snout. Cleft of mouth reaching to middle 

 of eye or somewhat farther back. Upper jaw on 

 each side with 13 pointed teeth, the 7 anterior 



Pig. 207. Head of Lcptocephalus taenia Less, 

 of 102 mm. length. X ^5- 



ones being much longer than the 6 posterior ones, 

 which are decreasing in size posteriorly and become 

 more triangular. Lower jaw on each side with 

 1 1 teeth, the 7 anterior ones being conspicuously 

 longer than the 4 posterior ones, which are short, 

 triangular and very obliquely placed. Dorsal and 

 anal with about 50, caudal with 8 rays. These fins 

 form a continuous low fold. Pectorals still only 

 vestigial. The pigmentation is restricted to a series 

 of black points on part of the ventral half of the 

 myocommata, on the interspaces between neigh- 

 bouring finrays, on the ventral surface of the kidney, 

 in the connective tissue ventrally from the gut as 

 also along the dorsal and anal. 



Fig. 206. Lepto- 

 ccphaliis taenia 

 Less, of 1 10 mm. 

 engtli. ca. X I '/2- 



