9- MADOKA SASAKI. 



swollen and form two elongate semilunar membranes, as is commonly the 

 case in species of the Enoploteuthidae. The membranes are equal in size 

 and length ; only the ventral one is situated a little more proximally than 

 the dorsal. The hooks on this arm number twenty-six, of which the distal 

 six are placed opposite the ventral semilunar membrane. The terminal 

 part of the arm, beyond the semilunar membranes, shows twenty-one small, 

 suckers, which fact apparently constitutes a characteristic feature of the 

 species. 



Genus Abralia Gray 1849. 

 7. Abralia and ama mica Goodrich 1S94. 

 Local name : Gumi-ika (Odawara). 



Abralia atidamanica, Goodrich 1896, p. g, pi. ii, figs. 38-45. Andaman Sea. 

 Asleroleulhis andamamca, Pfeffer 1912, p. 137. 



Two specimens (in alcohol) were collected at Odawara, June 1891 

 (Sci Coll.). Their principal dimensions are as follows : 



Specimen No. 



I. 



2. 



Dorsal length of mantle 



34 mm. 



35 mm. 



Breadth of mantle 



14 » 



13 » 



Length of fin 



23 » 



23 



Total breadth of fins 



30 ,. 



23 » 



Dorsal length of head 



n >■ 



11 » 



Breadth of head 



12 ,, 



13 » 



Length of first arm 



Left 

 20 mm. 



Right 

 20 mm. 



Left 

 20 mm. 



Right 

 20 mm. 



„ „ second arm 



25 „ 



24 „ 



24 „ 



24 „ 



„ „ third arm 



20 » 



21 ,1 



21 



21 „ 



„ „ fourth arm 



22 „ 



22 „ 



22 „ 



22 ,, 



Length of tentacle 



44 » 



43 >. 



44 



45 » 



,, „ club 



6 „ 6 „ 



6 „ 



6 „ 



Length of gladius 



28 mm. 





Breadth of gladius 



6 „ 





1 



