No. 2310. NEW CEPHALOPODS FROM THE PACIFIC—SASAKI. 175 



Vaginae very thick, short, terminating far behind the anus. Penis 

 only 5 mm. long, spindle-shaped, the swollen middle part connected 

 with Needham's sac. 



Total length 190 mm. in female, about 95 mm. in male. 



Type locality. — Near Cape Patience, Okhotsk Sea. 



Type.— Cnt. No. 332955, U.S.N.M. 



13. POLYPUS TSUGARENSIS, new species. 



Plate 23, fig. 4. 



Station 4810 (Tsugaru Strait). One mature male. Cat. No. 

 332972, U.S.N.M. 



Animal fleshy, very firm to the touch. Surface smooth excepting 

 a number of faint warts irregularly distributed about the eyes. A 

 laterally flattened cirrus is present above each eye. Body compact, 

 broader than long, expanded posteriorly. Mantle opening of 

 moderate width. 



Head a little narrower than body. Neck constriction weak. Um- 

 brella well developed, especiallj^ between the first and second arms as 

 well as between the lateral arms, where it extends more than a quar- 

 ter up the arms. Funnel rather long. Funnel organ half as long as 

 the distance between the anus and the end of the funnel, situated 

 much nearer to the former than to the latter; trilobate, the lobes all 

 triangular, sharply pointed distally, turning cephalad, and the 

 median lobe decidedly lon.ger than the remaining two. Posterior 

 margin of the organ with a small triangular indentation in the middle. 



Arms nearly equal, about four times as long as the body. Suckers 

 arranged in two well-defined rows except at the base of arms where 

 they are set somewhat distantly in two alternating rows. They are 

 markedly unequal, especially in the dorsal arms, where about two 

 pairs near the umbrella margin are characteristically enlarged. 



Right third arm hectocotylized, eight-ninths as long as the left 

 third. Terminal organ conical, one-eleventh the entire length of 

 the arm, provided with a well-defined copulatory groove which has 

 distinct transverse striations. The suckers on the normal part 

 42 pairs. 



Penis slender, 11 mm. long, bent crescentwise, connected with the 

 duct of Needham's sac in advance of the middle. Needham's sac 

 slender, bent into the shape of an L. Spermatophoric gland coils 

 in company with its accessory gland. Spermatophores 52 mm. long. 



Gill composed of 19 leaflets. Caecum of stomach reniform. 



Color in alcohol uniformly reddish brown. Three obscure trans- 

 verse stripes of a deeper shade are perceptible at the frontal region 

 of head. 



Total length 145 mm. ; ventral length of mantle 25 mm. 



Type.—Csit. No. 332972, U.S.N.M. 



