No. 2310. NEW CEPHALOPODS FROM THE PACIFIC— SASAKI. 183 



Body subglobose, bearing no horizontal keel around the periphery. 

 Mantle opening of moderate breadth. Head broad, but narrower 

 than the body. Neck constriction weak. Umbrella thick, fleshy, ex- 

 tending about one-third the length of the arms, but between the 

 ventral arms its extent is only |-^. Funnel organ W-shaped, about 

 half as long as the distance from anus to funnel extremity, situated 

 slightly nearer to the former than to the latter. 



Arms subequal, the formula of length being 4 > 3 > 2 > 1 ; very 

 short, even the longest only about two times or two and a half times 

 the body-length. All conical, rather rapidly tapering toward the ex- 

 tremities, without contractile webs. Suckers rather sparsely set in 

 two alternating rows ; none specially enlarged. 



Ovary much more expanded sideways than lengthwise. Vagi- 

 nae thick, slightly curved, terminating far behind the anus. Gill 

 composed of 19 leaflets. 



Color in alcohol uniformly light cardinal to claret red throughout. 



Total length of type 153 mm.; ventral length of mantle 40 mm. 



Type locality. — Off Kjnka-san_, Rikuzen Prov. 



Type.— Cat. No. 332969, U.S.N.M. 



25. POLYPUS VALIDUS, new species. 



Plate 24, fig. 3. 



Station 4915 (near Koshiki Island, Satsuma Province). One 

 fully mature male. Cat. No. 332971, U.S.N.M. 



Consistency rather firm, fleshy. Skin thicldy warty except at the 

 ventral surface of the head, mid-ventral region of body, the margin of 

 the umbrella, the distal parts of the three dorsal pairs of arms and the 

 whole surface of ventral arms; all of which are quite smooth. Warts 

 conspicuous, nearly stelliform or rosette shaped, well defined so that 

 the skin between them is quite smooth and even. They are largest 

 above the head and body, becoming smaller peripherally and ventrad, 

 thus attaining a minimimi size along the boundary region of the 

 warted area; the transition from the warty to the smooth condition 

 taking place somewhat suddenly. 



Body slightly broader than long, v\rithout keel along periphery but 

 with a deep median longitudinal sulcus on the belly. Mantle opening 

 of moderate breadth. 



Head a little narrower than the body. Neck constriction very 

 weak. Umbrella of moderate and miiform breadth all around, extend- 

 ing about a quarter up the arms, continuing along either side to the 

 extremity as a ridge. 



Arms subequal, the formula of length being: 1> 2> 3> 4; the 

 longest a little longer than twice the bodj^-length. Suckers biserial 

 excepting the first four or five, which are in a zigzag line. They be- 

 come somewhat rapidly larger to the tenth pair on each arm; from 



