REPORT OF COMMISSIONER OF FISH AND FISHERIES. [162] 
edge of mantle with a well-developed median dorsal lobe, and well- 
marked lateral angles. Fins broad transversely, short, less than half 
the length of the mantle; outer edges well rounded; posterior end very © 
obtuse. Arms all short, the two upper pairs much shorter than the two 
lower, the dorsal pair very short, considerably shorter than the upper 
lateral ones; ventral and lower lateral arms nearly equal in length. 
The dorsal arms are strongly compressed, with a well-marked, thin, 
dorsal keel; those of the second pair squarish at base, without a keel; 
those of the third pair are strongly compressed, bent outward at the 
base, and furnished with a high median keel, starting from the base, but 
highest in the middle; ventral arms triangular at base, with a wide 
membrane on the upper angle, which expands at the base and connects 
them with the third pair; a narrower membrane runs along the ventral 
margins. Tentacular arms rather stout at base, compressed farther out, 
in extension about as long as the body; club well developed, about 
twice as broad as the rest of the arm; its dorsal keel thin, elevated, 
oblique, commencing at about the middle of the club and extending to 
the tip. The larger tentacular suckers are very regularly arranged in 
four rows of 8 to 10 each, the lateral ones being not very much smaller 
than the median ones. The distal part of the club is covered with four 
regular rows of small suckers, and there is a terminal group of smaller, 
smooth-rimmed ones. The largest median suckers (Plate XX XI, figs 4b, 
4c) are broad, cup-shaped, rather larger than the largest suckers of the 
lateral arms; their horny rims are armed with regular, sharp, incurved 
teeth, smaller on the inner side of the sucker, but there are few or no 
small teeth, alternating with the larger ones. The lateral suckers are 
relatively large, deep cup-shaped, oblique, with very sharp incyrved 
teeth on the outer margin. The membranous borders of the large 
suckers are covered with minute, sharp, chitinous scales. 
The suckers of the short arms are very deep and oblique, cup-shaped ; 
their rims are much the highest on the outer or distal side, where the 
edge is divided into several broad, bluntly rounded denticles, separated 
by narrow intervals. 
The pen (Plate XXXII, fig. 4a) is short with a broad lanceolate blade ; 
the narrow part of the shaft is short; a thin border,widening backward 
to the blade, commences about half way between the tip and the proper 
blade; the latter is broad and thin, marked with divergent lines; pos- 
terior end obtuse. 
In the female there is no tubercle on the buccal membrane for the 
attachment of spermatophores. I have not seen the male, nor has any 
writer described it distinctively. * 
* Professor Steenstrup, in a recent paper, (Sepiadarium og Idiosepius, < Vid. Selsk. 
Skr., 6 R., 1, 3, p. 242, note, 1881) has proposed to make this species the type of a 
new genus, Lolliguncula, because the female receives the spermatophores on the inner 
surface of the mantle,—a character that seems to be scarcely of generi¢ value, unless 
it be reinforced by anatomical differences now unknown. Such characters may possi- 
bly exist in the unknown males. 
