CEPHALOPODA OF THE HAWAIIAN ISLANDS. 



345 



Measurements op Mastigoteuthis (?) Fameuca. 



Tip of body to tip of ventral arms 64 



Tip of body to base of dorsal arm 44 



Tip of body to medio-dorsal margin of mantle 39 



Extreme length of fins 21 



Length of fins at base 21 



Width across fins 14-5 



Width of mantle 4 



Width of head 4 



Length of— 



Head 5 



Dorsal arm 5 



Second arm 6. 5 



Third arm s. 5 



Ventral arm . . .' 20 



Type. — Catalogue no. 214314, United States National Museum [S. S. B. 260]. 



Type locality. — Albatross station 3989, 385 to 733 fathoms, bottom of coral sand and rock, vicinity of 

 Kauai Island, June n, 1902; a single specimen. 



Material examined. — The type is unfortunately unique. 



Remarks. — Although the whole aspect of this species is suggestive of Chiroteuthis rather than Masti- 

 goteuthis, the short olfactory papilla and the apparent absence of photophores on either the eyes or the 

 ventral arms preclude its reference to that genus as I had originally placed it. On the other hand, it 

 seems to have little in common with the remarkable M. agassisii Verrill, which is the type species of the 

 latter genus. Verrill 's species is notable for the extremely rich development of photogenic organs over 

 the entire outer integument, and possesses other features which induce me to believe that it will 

 eventually prove generically distinct from almost all the more recently described species usually 

 associated with it. Even from the latter forms the present species is strikingly different, and as the 

 condition of the single specimen is confessedly not all that might be desired, besides being very likely 

 immature, it may be that better material may after all accomplish its restoration to Chiroteuthis. 



In purely superficial characters M. famelica seems nearer to C. pellucida Goodrich of the Bay of 

 Bengal than to any other form of either genus known to me, but differs in the much larger fins, shorter 

 neck, more poorly developed arms, and a number of other characters. Both species are remarkable for 

 their gaunt slender body, and to this feature is due the specific name of the Hawaiian form. 



Family CRANCHIIDtE (Prosch 1847). 



Cranchida? Prosch 1847, p. 19. 



Cranchiada: Gray 1849, p. 37. 



C r an chiae formes Steenstrup 1861 (fide Hoyle). 



Desmoteuthidaz Verrill 1881, p. 300. 



Cranckiidee P. Fischer 1882, p. 340. 



Cranchiida; Pfeffer 1900, p. 154, 188. 



Cranchiida? Chun 1906, p. 82. 



Cranchiida? Pfeffer 1908, p. 63, 101. 



Cranchiida? Chun. 1910, p. 299. 



Cranchiida? Pfeffer 1912, p. 636. 



Mantle border firmly fused with the head in the nuchal region and with the base of the funnel on 

 either side. Body usually membranous and transparent; nearly colorless. Eyes usually large, often 

 pedunculate. Sessile arms with two rows of suckers only; tentacles with four rows of suckers, which 

 frequently extend down the stalk for the greater portion of its length; hooks may occur on the tentacle 

 club, but only in one or two genera. Photogenic organs may be numerously developed on the ventral 

 aspect of the eyeball, may occur within the pallial chamber, or may be entirely absent. 



Genus LIOCRANCHIA Pfeffer 1884. 



Liocranchia Pfeffer 1884, p. 25. 

 Liocranckia Chun 1906, p. 84. 

 Liocranchia Chun 1910, p. 303, etc. 

 Liocranckia Pfeffer 191 2, p. 644, 665. 



Mantle thin, saccular; often much inflated. Fins of rounded outline, terminal, small to moderate 

 in size. Two diverging series of small conical cartilaginous tubercles extend back from the ventral 

 point of fusion of the mantle and funnel on either side ; in some forms a similar series may be present 



