﻿400 



Leptocephalus peterseni M. Web. 



Lcplocephahis Peterseni Max Weber, Siboga-Exp. Fisclie, 

 1913, p. 72. 



I . S t a g e w i t li I I 2 s e g m c n t s. 

 Length 20 mm. 

 Height 6.5, head 13.5. The anus is i^o length 

 of head nearer to tip of tail than to head. 60 

 praeanal, 52 postanal segments. Eye about 372, 

 shorter than postorbital part of head and i'/2 

 in snout. In the upper jaw on each side ante- 

 riorly two long teeth and posteriorly 3 small 

 ones. In the lower jaw on each side 6 long 



Fig. 196. Leptocephalus 

 peterseni M. Web. of 

 20 mm. length. X 8. 



Fig. 197. Head of Leptocephalus peterseni M. Web. 

 of 20 mm. length. X 4°- 

 teeth, the hindermost of which alone is some- 

 what shorter. Cleft of mouth reaching some- 

 what behind the middle of the eye. A very 

 low, rayless finfold at the end of the tail. No 

 pectorals. A single specimen from the Savu 

 sea, between Timor and Lomblem, captured 

 with Hensen's "Horizontal cylinder", during 

 the night! 



2. Stage with 140 segments. 

 Length 38 mm. 

 Height about ']^\^_, head i5'/2- Anus 3'/2 

 lengths of head nearer to tip of tail than to 



