No. 2310. NEW CEPHALOPODS FROM THE PACIFIC— SASAKI. 173 



Station 5053 (Suruga Bay). One young female. Cat. No. 332983, 

 U.S.N.M. 



Skin more or less choroidal in consistency, quite smooth throughout, 

 even around eyes. Body slightly broader than long, expanded pos- 

 teriad, ];rovided vnth a shallow median groove on the belly, and a dis- 

 tinct horizontal ridge around the periphery. Mantle opening narrow. 



Head slightly narrower than l)ody; necic quite feebly constricted. 

 Funnel organ W-sha]/ed, its median A -shaped part twice as long as 

 the outer limbs. Umbrella rather narrov^', of nearly equal breadth 

 all round. 



Arms subequal, the formula of length being 1 > 2 > 3 = 4 ; longest pair 

 three to four times as long as body. Suckers small, arranged in two 

 well-defined rows, except three or four at the base of the arms, which 

 are in a zigzag row. The ninth or tenth sucker is the largest though 

 not specially enlarged. Eight third arm hectocotylized, a little 

 shorter than the left third; terminal organ ^ the entire length, sub- 

 fusiform, provided with narrov/ but well-defined copulatory groove 

 and about 22 distinct transverse streaks; suckers 52 pairs on the 

 norm^al part. 



Penis rather small, its posterior half bent almost into the shape of a 

 C, the anterior origin of vrhich is connected v\dth L-shaped Needham's 

 sac. Vaginae and oviducts proper, both nearly straight, the former 

 terminating far behind the anus. 



Gill composed of 23 or 24 leaflets. Caecum of stomach spherical, 

 but little flattened dorsoventrally and slightly involute. No ink- 

 gland present. 



Total length, 245 mm. in male, 155-185 mm. in female. 



Type locality. — Off Hidaka Province, Holvkaido. 



Type.— Cut. No. 332981, U.S.N.M. 



11. POLYPUS A3RUPTUS, new species. 



Station 4969 (off Kii Province). One male and female. Cat. No. 

 332935, U.S.N.M. 



Surface quite smooth, rather firm to the touch. Body as long as, 

 or longer than, broad; without distinct horizontal ridge along the 

 periphery. Mantle opening of moderate breadth. 



Head a little narrower than body, separated from it by a weak 

 constriction. Umbrella broad, equally developed all around, extend- 

 ing about a quarter up the arms to the fourteenth or fifteenth pair of 

 suckers, then continuing on as a rather broad contractile membrane 

 along the ventral side of the arms to the extremity. Funnel organ 

 conspicuous, situated in the middle of dorsal funnel-wall, W-shaped, 

 the outer limbs half as long as the A -shaped central part. 



Arms subequal, the formula of length being 1 >2=3 = 4; first pair 

 about four times as long as the head and body taken together. Suckers 



