REPORT OF COMMISSIONER OF FISH AND FISHERIES. [214] 
Brachioteuthis Beanii Verrill. 
Trans. Conn. Acad., v, p. 406, pl. 55, figs. 3-3); pl. 56, figs. 2, 2a, Nov., 1881. 
Plate XLV, figs. 3-3b. Plate XLVI, figs. 2, 2a. 
Male: Body rather small, tapering backward to an acute posterior 
end; dorsal mantle-edge with a broad obtuse angle; caudal fin large in 
proportion to the body, broad rhomboidal; outer angles prominent, 
anterior to the middle; the anterior lobes project forward considerably 
beyond the insertions, and are rounded. The form of the fin is much 
like that of Ommastrephes. Head thickened at the bases of the arms, 
not so large in proportion to the body as in C. lacertosa. Eyes large, 
eye-lids thin. Siphon large, with two strong dorsal bridles; internal 
valve broad, rounded, somewhat back from the orifice; connective car- 
tillages long-ovate, broadest behind (fig. 2a); dorsal cartilage of neck 
oblong, with a strong median ridge and two deep parallel grooves. 
Lateral cartilages of mantle (fig. 2) are simple linear ridges, extending to 
the edge of the mantle. Arms not very large, somewhat rounded, long 
and slender; the dorsal ones are much smaller and shorter than the others; 
two lateral pairs nearly equal in size and length, more than two-thirds 
the length of the mantle. Ventral arms shorter and much more slender 
than the lateral, more than half the length of the mantle; the ventral 
arms show but little of the compressed, oblique form, so conspicuous in 
the preceding species, and the crest or fold of skin along the outer- 
ventral angle is narrow, thin, and not very conspicuous; the suckers on 
the ventral arms are in two alternating, not distant rows, often appear- 
ing almost as if in one row toward the base, where they become smaller, 
but are of the normal cup-shaped form, with finely denticulate rings and 
slender pedicels; the tips of both ventral arms are much injured, but - 
small, normal, long pediceled suckers can be traced to the tip of the left 
arm; the right arm is denuded of its skin and suckers at the tip: The 
suckers of the four lateral arms are in two rather close rows, larger, 
oblique, low cup-shaped, attached by slender pedicels, which are some- 
what swollen just below the suckers; most of them have lost their 
horny rings; marginal membranes rudimentary. Web between the 
arms rudimentary. 
Tentacular arms very long and slender, in alcohol about twice the 
length of the mantle; a few scattered sessile suckers are found along 
the whole length of the arms; tentacular club well-developed, long- 
ovate, oblique, with a thick wrist and flat or concave sucker-bearing 
face; suckers small and very numerous, crowdedly arranged in many 
rows (probabiy sixteen rows or more), some of the middle ones larger 
than the rest; suckers not well preserved, but all appear to have been 
alike in form; pedicels long and slender, with a smooth and not very 
large swelling below the base of the sucker; the suckers have lost their 
horny rims, but the sheaths are shaped much like those of C. lacertosa, 
the distal portion being hood-shaped, with a lateral opening, while the 
basal part is'swollen laterally. The tip of the club is simple, without 
