626 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 41. 



carapace. In its other characters it approaches most closely to E. 

 Integra S. I. Smith, but it is distinguished by a difference in the out- 

 line of the anterior part of the carapace, by the marked transverse 

 groove of the last somite (hardly indicated in E. integra), by the more 

 nearly equal rami of the uropods, and by a number of other small 

 characters. 



Localities. —Albatross station 2466; lat. 45° 29' 00''N.; long. 55° 

 24' 00" W.; 67 fathoms; bottom temperature, 30° F.; U.S.N.M. 

 44116, 44117; 2 females (including holotype, 44117). 



Albatross station 2497; lat. 45° 04' 00" N.; long. 59° 36' 45" W.; 

 57 fathoms; bottom temperature, 33° F.; U.S.N.M. 44115; 12, female 

 and young. 



CUMELLA (?) CARINATA (Hansen). 



Campylaspis carinata Hansen, Vidensk. Medd. Kj0beuhavn, 1887 (1888), p. 207, 

 pi. 7, figs. 4, 4a. — Calman, Fisheries, Ireland, Sci. Invest., 1904, No. 1 

 (1905), p. 28. 



The specimens examined agree very well as regards external char- 

 acters with Hansen's excellent figures. 



I have previously discussed the systematic position of tliis peculiar 

 species and have suggested that it might possibly belong to the genus 

 Cumellopsis. A renewed examination of the mouth parts, however, 

 leaves no doubt in my mind that the species is most nearly related 

 to the genus Cumella. In the third maxillipeds the basis is slightly 

 produced at its distal outer corner and the merus projects externally. 

 The second maxilliped resembles very closely that of Nannastacus 

 unguiculatus as figured by Sars, and is very different from that of 

 Oumellopsis, the protuberance on the outer side of the merus being 

 especially well-marked. The terminal segment of the first maxillipeds 

 is distinctly broadened and sub-discoidal, much as in Sars' figure of 

 Cumella pygmsea. An even more important indication of affinity is 

 given by the branchial apparatus, on which I can discover no trace 

 of lobules. The remaining mouth-parts differ only in trivial char- 

 acters from those of Cumella and Nannastacus, the maxilla, which I 

 was unable to examine previously, being of normal type, with two 

 movable endites. The palp of the maxillula has two setse. 



The only character wliich could at present be regarded as excluding 

 the species from the genus Cumella, apart from the strongly calcified 

 and brittle integument and the tuberculated carapace, is the presence 

 of a distinct iscliium in the second maxilliped. This, however, is a 

 character somewhat difficult to observe, and it is by no means certain 

 that it is absent in all the species referred to Curnella, In any case 

 it would not, by itself, justify the establishment of a new genus. 



Only two specimens of this species have hitherto been recorded. 

 That described by Hansen was from Disco, Greenland, while that 

 in the Museum of University College, Dundee, is from the coast of 

 Labrador. 



