4OO 



2. Leptocephalus peterseni M. Web. 



Leptocephalus Peterseni Max Weber, Siboga-Exp. Fische, 

 1913, p. 72. 



i . Stage with 112 segments. 



Length 20 mm. 



Height 6.5, head 13.5. The anus is i 1 ^ length 

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

 praeanal, 52 postanal segments. Eye about ^\^ 

 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. 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. 



Fig. 196. Leptocephalus 



peterseni M. Web. of Height about *j*\ v head I57 2 . Anus 3 ! / 2 

 20 mm. length. X 8 - lengths of head nearer to tip of tail than to 



