CEPHALOPODA OF THE HAWAIIAN ISLANDS. 



351 



Sessile arms very slender and delicate; the third pair much the longest, the second pair next in 

 length, and the dorsal and ventral pairs very minute. Suckers small, but not in relation to the size of 

 the arms; biserial; umbrella and swimming membranes absent. 



Tentacles decollated; the stumps heavy, fleshy, brittle, without traces of suckers. 



Measurements of Heucocranchia Species? 



Length of mantle, dorsal 36 



Width of mantle : 1 ? 



Extreme length of fins 4 



Length of fins at base 2 



Width across fins 7 



Length of dorsal arm 4 



Second arm 9 



Third arm 11 



Ventral arm 4 



Funnel alonx medio-ventral line 



The specimen is minus the major portion of both tentacles, the eyes and arms have become detached 

 (although preserved in the bottle), and the remaining portions otherwise mutilated, so that it does not 

 seem wise to attempt to attach any specific name, although a new species is undoubtedly represented. 

 The great resemblance in general form to Helicocranchia pfefferi as described and figured by Miss Massy 

 (1909, p. 34) is such that I have little hesitation in assuming that the present specimen is referable to 

 the same genus, although the more broadly attached fins, lack of suckers on the stumps of the tentacles, 

 and various minor details indicate that at any rate the two are not conspecific. If this identification 

 be correct, the genus is now reported for the first time from the Pacific, the type species being known 

 only from a single specimen dredged off the coast of Ireland. Were it not for the immense funnel the 

 aspect would be almost that of an Owenia. The accompanying drawing is very unsatisfactory because 

 of the difficulty and uncertainty pursuant to any endeavors to straighten out the wrinkled mantle 

 and reconstruct fragmentary parts, but it seems worth while to offer it for whatever it may be worth. 

 The mantle is probably not represented as sufficiently elongate, and the arms are considerably too short 

 and stout. 



LARVAL OEGOPSID. 



An undetermined larval oegopsid of minute size is in the collection from Albatross station 3803, from 

 a depth of 50 fathoms, between the Erben Bank and Kaiwi Channel [S. S. B. 387]. 



