440 



DEPARTMENT OF THE NAYAL SERVICE 



' 'Acadia ' ' — Concluded. 



Station No. 



Hour. 



Depth 



(metres). 



Depth of Haul (metres). 



Length (mm.). 



Number. 



74 



75 



77 



85 



86 



6 p.m. 



9 p.m. 



9 a.m. 



9 a.m. 



12 m. 



3 p.m. 



over 1 , 000 



over 1 , 000 



over 1 , 000 



over 400 



over 400 



331 



325- 



55- 



c. 20- 



325- 



55- 



c. 20- 



c. 20- 



270- 



55- 



c. 20- 



270- 



55- 



c. 20- 



290- 



55- 



c. 20- 



(V.). 



(V.). 

 10 (T.). 



(V.). 



(V.). 

 10 (T.). 

 10 (T.). 



(V.). 



(V.). 



10 (T.). 



(V.). 



(V.). 



10 (T.). 



(V.). 



(V.). 



10 (T.). 



8-11 



7-13 



7-12 



6-12 



6-12 



8-14 



10-14 



18 & 19 



15-21 



11 & 21 



17 



1.5-20 



19 



19 



19 



13 & 14 

 17-20 



52 



21 



+ 



25X4 



50X5 



+ + 



c. 12 



2 



XX 

 4 

 1 

 1 seen 







2 seen 

 5 seen 



"Prince." 



12 m. 



200 180- (V.). 



e. 20- 10 (T.). 

 2- (T.). 



19-5 

 5-5 



1 seen 







In discussing the distribution of this species, it has been thought advisable to 

 distinguish between small and large individuals. 



Ritter-Zahony states that in warm water this species rarely reaches more than 

 15mm. in length. As we have both warm and cold water in the area explored, those 

 under 15mm. may show a different distribution from those over 15mm. In the table 

 given above in most cases these two groups have been separated. It must be re- 

 membered, however, that this division is quite arbitrary, warm water individuals 

 being occasionally longer than 15mm. and cold-water individuals being of all sizes. 



Vertical. — Fowler and Ritter-Zahony regard this species as typically epiplaiik- 

 tonic, but extending int othe mesoplankton. Michael, on the contrary, for the San 

 Diego region, states that the species reaches its maximum abundance below 150 

 fathoms, and that only the immature were taken above 100 fathoms except at night 

 when the larger specimens came up as far as 50 fathoms (1911, p. 150). This contra- 

 diction would indicate that diiferent species have been confounded. 



