102 TREUBIAWVO SMI 
Ke 
; = SEE 
ER (= 
TI S 5 
\ — 
ANNE 
> 
Fig, 6. Larva 113/, mm. long, 13X. 
p, black pigment, of, otocyst. 
The continuous median fin fold is becoming reduced while the rudiments 
of the dorsal and of the anal fin appear opposite each other, a little dis- 
tance behind the anus, which is found still under the 50th myotome. The 
arrangement of the pigment has changed a little. We see under the gut 
along the whole length of the ventral side a band of pigment-cells, arranged 
nearly in a single row. The pigment-cells already present in fig. 3 along the 
under border of the myotomes have gathered themselves into groups 
arranged at nearly equal distances, of which nine may be counted in front 
of the anus while a few more may be distinguished behind it. They give 
the larva a transversely striped appearance. 
Fig. 7. Larva 22 mm. long, 13 X 
a, anus, s, nare. 
