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slightly expanded, has a protective membrane on either side, but a 
dorsal web is present only at the extremity. The central suckers are 
about sixteen in number and about one-third larger than the laterals; 
the proximal are about ten, the distal are closely packed in four 
series. The horny rings of the largest are provided with about 
twenty larger teeth, with which smaller ones alternate somewhat 
regularly ; the lateral bear about ten distant acute teeth on the outer 
margin, while the proximal and distal groups are similarly armed on 
the distal margin. 
The Surface is smooth. 
The Colour is a dull yellow with purplish chromatophores. 
The Gladius is of the usual form, the narrow anterior portion 
being less than one-fourth of the total length. 
Hab. Japan; purchased in the market, Yokohama. One 
specimen, 
Loligo japonica, Steenstrup, MS. 
Loligo japonica, Steenstrup, MS. 
,, ,, Hoyle, Ann. and Mag. Nat. Hist ., ser. 5, vol. xvi. p. 
187, 1885. 
The Body is only moderately elongated, being about three times 
as long as broad, and bluntly pointed behind. The fin is a little 
more than half the length of the body, about as long as broad, 
rhomboidal, rounded laterally, and very slightly notched at the 
anterior angles. The mantle-margin curves gradually forward to a 
projecting point in the dorsal median line, and is deeply emarginate 
ventrally. The siphon is short and of the usual form. 
The Head is comparatively large and rounded; the eyes are 
swollen and prominent. 
The Arms are unequal, the order of length being 3, 4, 2, 1, and 
on an average about half as long as the body ; the first are very 
small, slender, and rounded ; the second have a prominent ventro- 
lateral angle, not amounting to a keel ; the third have a distinct 
web on the outer aspect of the distal portion, which is continued 
backwards as a faint ridge which joins the web lying along 
the dorso-lateral edge of the fourth. The suckers are in two 
series, and vary in size in accordance with the arms on which 
they are situated ; they are subglobular and oblique. The horny 
ring bears about ten broad, close-set, square- cut teeth. The 
