r905. 



Nichols. — A Large Squid. 



55 



along the ventral edge a broad, thin, delicate membrane (M. M') 

 about 6 cm. wide near the middle of the arm ; there is also a 

 small lateral membrane on each of the second pair of arms, 

 and a very small membrane on each of the first pair of arms. 



Sthenoteuthis pteropus. One-tenth natural size. 



The length of each of the tentacular arms, I, I', is 99 cm. 

 (39 inches). The dimensions of the specimen are now rather 

 less, owing to the preservation in methylated spirits ; but I 

 find that the contraction only amounts to about 5 % of the 

 original measurements. The length of the mantle in the 

 Salcombe specimen was 51 cm., and of the tentacular arms 

 64 cm. 



