OPHIACANTHIDAE 



257 



mania, 



lia, described by Koehler in his report on the Ophiuroids of the Australasian 

 Antarctic Expedition (p. 19, pi. Ixxxv, figs. 9-13), and I would not be altogether too 



Fig. 8rt, h. Ophiomitrella ingrata, Koehler. Part of oral side (a) and dorsal side {b). 



Fig. 8 f, d. OphiomitreUa falklandica, n.sp. Part of oral side (r) and dorsal side {d). X22-5. 



surprised if it were ultimately to be found that the two are identical. But for the present 

 I do not venture to state definitely that the South American specimens, from depths of 

 79-463 m. (Koehler even records a specimen from 40 m.), are identical with the deep- 

 sea species O. conferta, known only from off Tasmania from a depth of 2340 m. 



