426 



DEPARTMEWT OF TEE NAVAL SERVICE 



56° 43' W. It belongs to the surface water of the Gulf Stream. It was not found on 

 the first cruise of the Acadia. On the second cruise of the Acadia it occurred in 

 abundance only at the southernmost station (station 44), where 209 specimens were 

 obtained. At each of five other stations, one to five specimens were taken (stations 

 41, 42, '50, 56 and 75). Its occurrence at station 50 is interesting as indicating the 

 movement as far as that point of the surface Gulf Stream water. Its distribution is 

 shown by the horizontal continuous lines in fig. 1. 



Bigelow in his July- August cruise of 1913 obtained it south of cape Cod up to a 

 latitude of nearly 40°. 



(c) Sagitta lyra Krohn. 



1911, Ritter-Zahony, p. 13. 



The specimens obtained varied in size from 15-38mm. in length. The individuals 

 obtained at Acadia stations 16 and 17 .on June 1 were not sexually mature, seminal 

 vesicles and ovaries not being easily seen, although the tests were distinct. Those 

 obtained on the later cruise were more mature, the ovaries being moderately long but 

 narrow, and the seminal vesicles appearing. This species and the next are easily 

 separated from the other species by the very evident connection between the anterior 

 and posterior fins. 



DISTRIBUTION. 

 C. G. S. "Acadia." 



Station No. 



Depth (metres). 



Depth of Haul (metres). 



Length (mm.). 



Number. 



16 



17 



42 

 44 

 55 



56 

 70 



74 



over 2,000 



over 2,000 



over 1, 

 over 1 , 

 over 1, 



over 1 , 

 over 1 , 



000 

 000 

 000 



000 

 000 



over 1,000 



over 1,000 



200- (V.). 

 (T.). 



200- (V.). 



(T.). 



200- (V.). 

 (T.). 



270- 



(V.). 

 (T.). 



270- (V.). 



90- (V.). 



(T.). 



375-250 (C). 

 250- (V.). 



325- fV.). 



55- (V.). 



c. 20- 10 (T.). 



.325- (V.). 



55- (V.). 



•. 20- 10 (T.). 



325- (V.). 



55- (V.). 



e. 20- 10 (T.). 



13-30 



2.5-30 

 15, 16 & 19 



(fragment) 

 15-25 

 24 & 27 



26-32 

 25-32 



38 



18-33 



29-33 



4 

 3 

 



5 

 



2 

 

 



7 

 4 



1 

 

 



4 

 

 



10 

 

 



