176 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



11. POLYPUS PUSTULOSUS, new species. 



Plate 23, fig. 5. 



Station 5092 (Sagami Sea). One female. Cat. No. 332976, 

 U.S.N.M. 



Superficial consistency soft, very loose, flabby. Dorsal surface 

 uniformly and rather sparsely covered with minute warts. In 

 addition to these there are found 20 or more, rather large, rounded 

 regularly arranged tubercles. Above each eye are found tv^^o cirri, 

 of which the posterior is the larger. Body as wide as long, with 

 neither horizontal ridge around the periphery nor longitudinal groove 

 on the belly. Mantle opening narrow. 



Head broad, only a little narrower than the body. Umbrella of 

 moderate breadth, generally extending a quarter up the arms. 

 Funnel organ conspicuous, longer than half the distance between the 

 anus and the end of the funnel, rougtily W-shaped. The A -shaped 

 middle part of the W is composed of a broader ribbon than the outer 

 limbs, while the anterior turned points are all rounded and the pos- 

 teriorly turned points are both acuminate. 



Arms unequal, the formula of length 1> 2> 3> =4 the longest 

 being about three times as long as the head and body taken together. 

 All thick, provided with a broad thick contractile web on the ventral 

 side. Suckers relatively largo, distinctly biserial, excepting several at 

 the base of the arms, v/hich are distantly spaced in two alternating 

 rows. None of the suckers specially enlarged on any arm. 



Ink-bag large, pyriform. Proximal part of ink-duct sunk deep in 

 the liver. Anal valves rather large. Caecum of the stomach large, 

 hemispherical, slightly involute. Gill composed of 21 leaflets. 



Vaginae slender, nearly straight, their distal ends separated from 

 the anus by the length of the gill. 



Color in formalin uniformly drab, but a little lighter beneath. 



Total length 380 mm. ; ventral length of mantle 63 mm. 



Type.— Cat. No. 322976, U.S.N.M. 



15. POLYPUS CONISPADICEUS Sasaki. 



Polypus conispadiceus Sasaki, Annot. Zool. Japon, vol. 9, 1917, p. 367. 



Station 4808 (Tsugaru Strait). Tv/o males. Cat. No. 323986 

 U.S.N.M. 



These two specimens are inihesitatingly referred to the present 

 species but the suckers are, on the whole, larger, more expanded 

 distaUy, and more closely set, than in the type specimen. Moreover, 

 on each arm the suckers become rapidly larger to tlie eighth or ninth 

 pair, succeeded by three or four pairs of still larger suckers, these are 

 followed by about five pairs of suckers rapidly diminishing in size. 

 Beyond these, the suckers become gradually sm^aller towards the 



