2 HOYLE, Type Specimen of Loligo eblance, Ball. 



diameter being about one-fourth backwards from the 

 anterior margin. It tapers gradually to the posterior end, 

 which is very blunt. They?;/ is very broad, its total breadth 

 being nearlyequal to the length of the mantle and more than 

 twice its own extreme length. It is notched at its anterior 

 insertion into the body ; the extreme margin is very thin 

 and shrivelled, so that the exact outline is difficult to 

 determine. The inantle-inargin presents a blunt angle in 

 the nuchal region and is somewhat emarginate on the lower 

 aspect opposite the funnel. The mantle-connective is of 

 the type usual in the genus Ommastrephes. There is a 

 well-marked valve in the opening of the fnnnel, which 

 reaches forward about as far as the posterior margin of the 

 eye-opening, and is connected with the head by two long 

 suspensory ligaments. 



TJie Head is rather flattened from above downwards, 

 and not quite so wide as the opening of the mantle. On 

 the lower surface is a shallow depression, which has no 

 striated area, for the funnel. The eyes are very much 

 shrunk ; the ocular opening is roughly circular, with an 

 angular notch in front. The radula {fig. 6), which 

 was fortunately intact, has been mounted for me by the 

 Rev. H. M. Gwatkin ; it agrees well with that of T. vetanyi 

 as figured by Girard. 



The Arms are unequal, the order of length being : — 

 2, 3, 4, I. The longest are of about the same length as 

 the mantle and the shortest about three-quarters of this 

 length. They are rounded and present traces of a 

 keel or narrow swimming membrane along the outer 

 aspect, excepting in the fourth pair, and there are also 

 traces of a narrow delicate keel along either side of the 

 sucker-bearing face, but the surface is in rather bad 

 condition and the.se features are not very clear. The 

 suckers are arranged in two series and are placed obliquely 



