344 
buli^etin of the bureau of fisheries. 
Subfamily MASTIGOTEUTHIN^ (Verrill i88i) Chun 1908. 
Masiigoteuthidce Verrill i88ia, p. loo. 
Mastigoieuthince Chun 1908, p, 87. 
M astigoteutkin<B Qhun 1910, p. 219, 220. 
Mastigoteuthincs Pfeffer 1912, p. 540, 608. 
Olfactory tubercle or papilla short-stalked. Tentacles long and slender; club not expanded and 
without glandular swellings at tip. Photogenic organs in some cases numerously developed over the 
entire integument, sometimes lacking; no photophores upon the eyeball or within the pallial chamber. 
Genus MASTIGOTEUTHIS Verrill 1881. 
Mastigoteutkis Verrill i88ia, p. loo. 
Mastigoteuikis Pfeffer 1900, p. 184, 187. 
Mastigoteutkis Chun 1910, p. 220. 
Mastigoteutkis Pfeffer 1912, p. 609. 
The characters of this genus coincide with those of the subfamily of which it is the only known 
representative. 
Type. — Mastigoteutkis Agassizii Verrill i88i (monot}rpic) ; a North Atlantic species. 
Mastigoteutkis (?) famelica (Berry 1909) Pfeffer 1912. (PI. 1.11, fig. 6-8.) 
Chiroteuthis famelica Berry 1909, pp. 414, 419, fig. 8. 
Mastigoteutkis (9) famelica Pfeffer 1912, p. 624. 
Animal small, graceful, its outlines attenuate. Mantle cylindrical, extremely long and narrow; 
gradually tapering for a little more than half its length, then becoming suddenly constricted to continue 
as an exceedingly slender and delicate spit extending between the fins and somewhat exceeding them 
posteriorly; anterior margin sinuous, inflated, projecting in an obtuse point in the medio-dorsal line. 
Fins enormous, leaflike, not lobed; at the base relatively thick and fleshy, but thin at the margins; 
each one about three times as long as wide and extending for a little more than half the length of the 
mantle; separated only by that portion of the slender posterior extension of the mantle which covers the 
delicate gladius; in front the attached margins extend well forward on the dorso-lateral surfaces of the 
main body. 
Head small, narrower than the body except across the eyes, whence it rapidly tapers to the narrow 
elongate neck (the neck is rather longer than wide); dorsal and ventral surfaces flattened. Eyes large, 
rounded, conspicuous, somewhat protruding; very anterior in position. “Olfactory papilla ” short, but 
possibly not well represented in the present specimen. Funnel small, broadly conical, not quite reach- 
ing to the eyes. Funicular locking cartilages deep, ear-shaped, with ridges to correspond on the inner 
sruface of the mantle. 
Arms, except the ventrals, extremely short in proportion to the length of the body; decidedly 
rmequal, the order of relative length being 4, 2, 3, i. Ventral arms enormously developed, about three 
times as long as the others and half as long as the body; squarish; sucker-bearing surface very narrow 
in proportion to the total diameter of the arm and furnished with two alternating rows of distant minute 
slender pediceled suckers, the homy rings of the latter minutely toothed. Remaining arms more nearly 
of a length, the dorsal pair a little the shortest and weakest; their suckers slightly larger and more 
crowded. All the arms obscmely keeled. Umbrella and lateral membranes wanting. 
Tentacles missing. 
Gladius extremely long and slender, the posterior cone terminating in a long needle-like point; 
visible through tlie dorsal integument as a dark medio-longitudinal line. 
Color in alcohol a pale brownish buff; chromatophores brown but very sparsely distributed. Such 
portions of the outer integument as remain intact are devoid of photogenic organs, and I have not 
succeeded in identifying any of these stmctrrres upon the eyeball. 
