CRUSTACEA FROM THE FAT.KLAXD ISLAXD8, 351 



some being a uniforin brown, wliilo others long retain signs of 

 a ))rillia,nt marbling, sncli as that suggested by Dana of purple 

 patches ou a yellow ground. 



Gen. Cassiuinopsis Hansen. 



1905. Cassidlnopsis Hansen, Quart. J. Microsc. Sci. vol. xlix. 

 pp. 77, 82, 87, 90, 94, 106, 109, 128, 130. 

 Hansen places this genus in his group tSphcfroinina; eMbrcmchiatcP, 

 with the definition, " Head small, narrow in jiroportion to largest 

 breadth of thorax. Basal joint of antennulae without process 

 from the distal posterior angle. End of abdomen feebly 

 emarginate. Uropoda similar in both sexes ; endopod laterally 

 expanded, very much broader and a little longer than exopod. 

 Both sexes similar, without processes ; female with normal 

 mouth-parts and the brood in internal pouches." He states that 

 '•the type is Cassidina emargivata (Guer.), which in many 

 important points — structure of jjlp.^ and plp.% shape of epistome, 

 niandihles, fifth joint of maxillipeds, end of abdomen— differs 

 strongly froni the type for the genus Cassidina, C. typa (M.-Ed w.)." 



Cassidixopsis emargixatus (Guerin-Meneville). 



1843. Cassidina emarginata Guerin - Meneville, Icon. Reo-ne 



Animal, Crust , texte, p. 31. 



1900. „ „ Stebbing, Proc. Zool. Soc. London, 



p. 562 (with synonymy). 



1905. Cassidinopsis ,, Hansen, Quart. J. Microsc. Sci. 



vol. xlix. p. 87. 



1910. „ „ Horlg.son, Nat. Antarct. Exp. 



vol. V. p. 4. 



1911. Cassidina „ Oi'tmann, Princeton Univ. Exp. 



Patagonia, vol. iii. p. 650. 

 The pigmented portion of the eyes has a conical shape, the 

 narrow end foremost. Mr. Vallentin at various dates obtained 

 specimens of difterent sizes, especially at Roy Cove, from fronds 

 of Macrocystis between 2 and 4 fathoms. 



Yallentinia, gen. nov. 



A member of the Sphajrominie eubranchiata:', near to Paracerceis 

 Hansen, 1905, but distinguished by not having the basal joint 

 of the first antennte produced into an acute process, the mandibles 

 of the female not coalesced with the head, the exopod of the 

 uropods much shorter and narrower than the endopod, first 

 gnathopod prehensile in the male. 



Vallentinia darwixii (Cunningham). 



I'^ll. Cj/modocea darwinii R. 0. Cunningham, Tr. Linn. Soc. 

 London, vol. xxvii. p. 499, pi. 59. figs. \, \ a, \ b. 



Ill] 



