59 r. 



MADOKA SASAKI : 



left series is made up as follows : two basalmost suckers small ; then 

 there is a large papilla-like process, followed by two small suckers ; 

 after that there come two or three large ones, in their turn followed 

 distally by a close series of eleven or twelve peculiar unstalked and 

 cylindrical suckers. In the right series, there are at base two small 

 suckers which are a little larger than the opposite ones of the left 

 series ; then there follow four suckers which are about as large as the 

 largest ones of the left ; finally there occur about eleven or twelve 

 suckers similar to, but a little shorter than, those in corresponding 

 position of the other side. 



Tentacles slightly shorter than twice the length of longest arm ' r 

 club a little swollen in the middle and narrowed towards the pointed 

 extremity, with a long web along back ; sucker uniformly minute, 

 arranged in about eight series. 



Skin smooth and dotted all over with relatively large chromato- 

 phores. Luminous organ of the mantle cavity well developed. Gladius 



absent. 



Type. Two specimens in alcohol, Tokyo Bay, July 1910 

 (Sci. Coll.). The measurements are as follows : 



mm. mm. 



Length of mantle (ventral) 10 11 



Length of head 7 7 



Breadth of body 10 10.6 



Breadth of head 9.8 10.2 



Breadth of fin 5 5.4 



Length of fin 6 6.5 



Distance from mantle-margin to anterior attach- 

 ment of fin 3.1 3.3 



Extent of attachment of fin 3 3.5 



Length of first arm (right) 8 8.3 



„ „ second arm (do) 9.5 10 



„ third arm (do) I 9.8 11.3 



