130 TEUTHID^. 



Verany says it is migratory. De Blainville named it 

 Loligo sagittata ; and Cantraine erroneously considered 

 it the younger state of O. todarus. 



The Loligo Eblance of BaU (Proc. R. Ir. Ac. i. p. 362, 

 pis. 1-7), from Dublin Bay and Lough Strangford, ap- 

 pears to be the female of O. sagittatm. He evidently 

 did not know the latter species, for which he mistook 

 O. todarus. Through the kindness of Prof. AVyville 

 Thomson I have examined the late Mr.Wm. Thompson's 

 specimen of 0. Eblance referred to by Forbes and Hanley. 



Genus II. LOLI'GO^ Schneider. PI. V. f. 2. 



Eyes covered with a membrane, which has a small opening ; 

 uo lachrymal sinus. 



Shell terminating in an open point. 



Gould says as to L. illecebrosa, which is the most 

 common species on the Massachusetts coast, that " they 

 devour immense numbers of small fish, and it is amusing 

 to watch their movements and see how, at a distance of 

 several feet, they will poise themselves, and in an in- 

 stant, with the rapidity of lightning, the prey is seized 

 in their long arms, and instantaneously swallowed.^' 



I. Loligo vuLGARisf, Lamarck. 



L. vulgaris, Lam. Mem. Soc. H. N. p. 11 ; F. & H. iv. p. 226, pi. LLL. 



Body pale fleshcolour or yellowish -white, closely speckled 

 with purpHsh-brown ; it is rather slender : fins broad and 

 obtuse-angled, extending about f the length of the mantle, 

 and coalescing at its base : tentacles vermiform, as long as the 

 head and mantle together, smooth for |- of their length ; 

 club armed with numerous and crowded suckers, which are 



* The ancient name of this kind of Cephalopod. 

 t Common. 



