CEPHALOPODA.^-BERRY. 227 



Type.— A 9 , E5605 [S.S.B. 545], in the collection of the 

 Australian Musemn, Sydney. The specimen is unique. 



Tyve Locality. — 270 fathoms, S.E. x S. of Gabo Island, 

 Victoria ; (" Endeavour ") ; 1 9 . 



Remarks. — Although there are a good many named species- 

 of the genus Calliteuthis, sensu latiore, the great majority of 

 these have been so ill defined that it has become exceedingly 

 difficult to deal with the group at all. Any additional species 

 described are therefore likely to be viewed with suspicion 

 vmtil it can conclusively be shown that they possess no 

 counterpart among the melange of names applied to their 

 various relatives. The specimen now before us I have 

 accordingly tried to describe in as full a maimer as the rather 

 imperfect state of its preservation has permitted. Fortu- 

 nately it possesses one character, the ridgepole-like series of 

 cartilaginous tubercles on the dorsum and along the outer 

 aspect of the four dorsal arms, which has been noticed here- 

 tofore in but two species, C. meleagroteuthis Chun, and C. 

 separata Sasaki, both of which are members of the group 

 Meleagroteuthis and thus differ conspicuously from the Aus- 

 tralian species in many particulars, notably in the extraordi- 

 nary development of their photogenic organs. In the distri- 

 bution of these structures over its body C. miranda approaches 

 much more nearly to Stigrnatoteuthis, but even here does not 

 rest comfortably unless we amend Pfeffer's diagnosis to include 

 species with four as well as with three rows of photophores on 

 the ventral arms. This, in fact, constitutes the second im- 

 portant pecuharity of C. miranda, and one in which, curiously 

 enough, it Avould seem to stand unique. A third respect in 

 which it differs from most if not all of the older species is in the 

 extent and peculiar arrangement of the umbrella and accessory 

 webs in relation to the arms, tentacles, and buccal membrane. 

 This is most nearly resembled by the condition shown in 

 Pfeffer's figure of his M. hoylei=C. meleagroteuthis Chun (cf. 

 Pfeffer, 1912, Taf. 22, fig. 8), but differs in that the three 

 dorsal lappets of the buccal membrane are not forked, but 

 simple, and seem to spring directly from the umbrella rather 

 than from the sides of the arms, while the umbrella itself 

 Jippears somewhat more extensively developed. The appa- 

 ratus at the base of the tentacles is not shown at all in 

 Pfeffer's figure. 



Just how much change these different structures undergo 

 during the entogeny of the organism has not yet been worked 

 out for any of the species, save to a certain degree for C. 

 reversa, so we have still to face the possibility that such 



