CEPHALOPODA.—BEEKY. 
9 
of a much narrower but similar fold extending from the anterior margins toward the 
eyes. Pallial aperture very narrow, nearly circular, and closely encompassing the 
small short funnel. 
Head about as wide as the body and not well delimited from it. 
Arms about equal in length to the head and body taken together ; unequal, the 
formula quite distinctly 1, 2, 3, 4. Each bears along its oral face a single series of small, 
closely placed, discoid suckers, flanked on either side by a series of short, blunt, cylindrical, 
papilliform cirri, which commence at the second or third sucker from the base, continuing 
Fig. 2 —Stauroteuthis mawsoni. 
Lateral view. X 3. 
Fig. 3 .—Stauroteuthis mawsoni. 
Oral aspect of left dorsal arm. X 7. 
in alternation with the suckers nearly to the tips of the arms. Umbrella thin and 
delicate, but ample, especially between the dorsal arms, which it connects nearly to their 
extremities; slightly less extensive between the dorsal and second arms and laterally, 
becoming emarginate between the arms of the ventral pair nearly half way to the base. 
The umbrella is attached to the arms in the ordinary way and there is no intermediate 
web. Suckers little elevated, apertures minute, the rims wide and flattened, with rather 
indistinct traces of radial fluting. (Text fig. 4.) 
Vol. iv., Part 2— b 
