14 ME. E. S. GOODRICH ON A COLLECTION OF 



Of the four species * of Cheiroteuthis hitherto known, two come from the Atlantic, 

 one from the Mediterranean, and one from Aniboyna. In general shajoe and size the 

 present species approaches most nearly the latter, Ch. Picteti ; yet it differs from it in 

 the possession of a fin along the apical region of the mantle, in the beak, horny ring of 

 the suckers, socket at the base of the siphon, and pen. 



f 



Cheiroteuthis pellucida, n. sp. (PI. 4. figs. 58, 59, 60, & 61.) 

 This small specimen, cajitured at a depth of 922 fathoms off the Vizagapatam coast, 

 lat. 16" 11' 15" N., long. 82° 30' 30" E., was brought up alive on deck, when it appeared 

 transparent, with dark purple chromatophores. In spirit it is still remarkably trans- 

 parent, and the chromatophores (not represented in fig. 58) are very large and few in 

 nixmber, scattered at wide intervals over the body, fins, and arms. 

 Tlie principal measurements are as follows : — 



Length of the mantle (lower surface) 4*8 eentim. 



Breadth „ '8 „ 



Length „ to sudden constriction . . 2'G „ 



„ „ beyond fin 'G ,, 



,, of fin-attachment 2'1 ., 



Breadth of fin 1-8 



Length from mantle-edge to base of arms . . . 2.2 „ 



Breadth across eyes -7 „ 



Length of dorsal arm 1-4 „ 



„ dorso-lateral arm 1'8 „ 



„ ventro-lateral „ 2"3 „ 



„ ventral „ 4'5 „ 



,, tentacular ,, 8 „ 



>, ,> club 3 



In general appearance this interesting little Cheiroteuthis reminds us strongly of 

 Doratopsis vermiciilaris (Riippell) by its long and almost cylindrical mantle with a 

 narrow apex, its long thick neck, and the great disparity in size between the ventral and 

 remaining three pairs of arms. 



The mantle, as already mentioned, is nearly cylindrical until it suddenly narrows 

 down in the region of the fins to a narrow straight prolongation, which extends beyond 

 the fins, forming a rounded spine (fig. 58). The fins themselves are broad and rounded (/), 

 but the outline is less circular than in the preceding species. Dorsally the mantle 

 projects over the neck in a small point. 



The fiinnel is sharply recurved at its apex, and provided internally with a broad valve 

 produced and thickened at the sides. The socket of attachment is shown in fig. 59. 



The head is hardly wider than the neck ; the eyes are somewhat prominent. Between 

 these and the siphon are two olfactory papillae (olf.p.). The buccal membrane is 

 furnished with seven well-marked ridges and lobes. 



Beyond the eyes the head narrows considerably, and enlarges again to support the 



* 



M. Joubin has lately described a new species from the Atlantic (4). 



