482 MOLLUSCA. 
Length of body, ten inches; breadth anteriorly, three inches; 
length of fin, four inches; breadth six inches; length of head, two and 
a half inches; breadth at eyes, two and a half inches; length of longest 
sessile arm, six and a half inches; of shortest, four and a half inches ; 
length of *tentacular arms, ten inches; diameter of eye, three-quarters 
of an inch. 
Obtained at Feejee Islands; Antarctic Seas. Dr. Holmes. 
The only species with which this bears a close relation is Loligo 
todarus, Rafin., from the Mediterranean. In that species, the inferior 
arms are like the others covered with cupules; the tentacular arms 
have cupules their whole length. It agrees in the form of the shell, 
and the colour and arrangement of the cupular denticles. Lolgo 
Bartrami, Fer., has all the arms fringed somewhat like the lower pair. 
L. sagittata, Lam., has the general form and arrangement of the arms, 
but all of them are supplied throughout with regularly graduated (in 
size) cupules. 
In another specimen, marked ‘Antarctic Seas,” the peculiar fringe on 
the lower tentacles is wanting, but the cupules are very small, and are 
narrowed, as it were, into a single series. All the tentacles are more 
slender. Described from specimens in spirits. 
Figure 594, the animal, with details; 594 a, the dorsal shell. 
ONYCHOTEUTHIS RUTILUS (Gould ). 
Corpus breve, antice latum deinde sensim angustatum, dorso carinatum ; 
pinnis magnis dimidium corporis superantibus, longioribus quam lates : 
caput subquadratum, subtus excavatum: oculi nigrt, maximt: sipho 
brevis, cylindraceus: brachii sessiles triquetri, dimidium corporis ade- 
quantes, ordine longitudinis 4, 3, 2, 1, acetabulis pedicellatis sub-unt- 
serialibus instructi: brachii tentaculares robusti, cylindrici, unguibus 
ad decem pedunculatis muniti: color supra metalhca, reflectionrbus 
violaceis et auratis ; infra salmonacea ; capite coloribus violacets, lla- 
cinis, aurantiacis, flavis, etc., ornato. 
Body short, broad in front, and immediately narrowing backwards, 
and ending in a produced point, giving a lanceolate form, carinate 

