74 
Fig. 6. Sagitta tasmanica Thomson, seminal vesicles, 
ventral view. 
PACIFIC SCIENCE, Vol. XV, January 1961 
those of S. neglecta Aida (Fig. 9), and they 
belong to the "bedoti- type” (Tokioka, 1939). 
To compare the seminal vesicles of S. euneritica 
n. sp. with those of S. friderici Ritter-Zahony, 
see Tokioka, 1955, and Furnestin, 1953 and 
1957; and to compare with S. setosa Muller 
see Furnestin, 1958. 
The ovaries almost fill the width of the body 
and extend up to the anterior end of the poste- 
rior fins. The ovulae are not as large as those 
in S. setosa and they completely fill the ovaries. 
The ecology of this species is very similar to 
S. setosa and S. friderici which are also found 
in coastal waters. In the California region S. 
euneritica n. sp. appears in large numbers 
(thousands per sample) in the neritic areas. 
In some places they are carried offshore by 
local superficial currents or eddies. In these 
cases the total number per haul gradually de- 
creases as the distance from shore increases. 
Table 3 gives the meristic characters and 
armature formulae. 
Fig. 7. Sagitta pacijica Tokioka. a, Seminal vesicles, dorsal view; b, ventral view. 
