137 
base and are fastened, as figured, repectively outermost at the 
upper side of the upper jaw and outermost at the underside of the 
lower jaw. 
The number of segments (myomeres) is about 182, or about 
113 præanal and 69 postanal segments. 
The greatest height of the body is gr ses 2,3 mm. 
Distance from the point of the. snout to anus ...... 16,75 — 
Bengt of the. head; s038s so skeder Ser ag, 1,3  — 
Distance from the point of the snout to the anterior 
margin og ENE GE le ll SE MEN | 0,8 — 
1hnmieter Of 1hO OR LA aa Sonne ER NE SE 0,4. — 
II. Fig, 4 is a photograph 
of the next smallest Leptocepha - 
lid; its total length was 21,5 
mm. This specimen was cap- 
tured at the surface on 26745' 
lat. N. 59? 35' long. W. at 
7 o'clock p. m. the 6th of March 
1911. The body is compressed, the tail end tapering. Fig. 5 shows 
Fig. 4. 5:38, 
the distribution of the — very few — dark brown chromatophores 
Nig, 5 -BQ: 7. 
Fig. & FK 
on the tip of the tail. No pigment else is seen on the animal. 
The pectoral fins are small; embryonic fin rays are developed far 
forward in the vertical fins, but interspinalia are not yet visible. 
Fig. 6 represents the head with its powerfully developed teeth. The 
Upper jaw has on each side 3 smaller teeth behind and 4 larger 
teeth in front. The lower jaw has on each side only 2 smaller and 
