628 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



tubercles on the carapace are slightly smaller and more acutely 

 conical, and they show less tendency to run together into continuous 

 ridges. The distal segments of the third maxilKpeds and first and 

 second legs are noticeably more slender than in Sars' figures. 



It is possible that the examination of further material may show 

 this Japanese form to bo distinct from that found in the Atlantic. 



Localities.— Albatross station 2212; hit. 39° 59' 30" N.; long. 70° 

 30' 45 " W. ; 428 fathoms ; bottom temperature, 40° F. ; U.S.N.M. 44000 ; 

 1 female. 



Albatross station 5087; Sagami Bay; 614 fathoms; bottom tempera- 

 ture, 37.5° F.;U.S.N.M. 44001: 1 male. 



CAMPYLASPIS AFFINIS G. O. Sars (?). 



Campyluspis affinis G. O. Sars, Forh. Vidensk. Selsk. Christiania, 1869 (1870), 

 p. 160.— Crust. Norway, vol. 3, 1900, p. 91, pi. 64. 



Five specimens, including two subadult females, are referred with 

 considerable doubt to this species. They differ from Sars' account 

 of it cliiefly in having on each side of the carapace a shallow obHque 

 depression in the same position as that present in C. sulcata but much 

 less extensive and less sharply defined. From the last-named species 

 they are also distinguished by the much less strongly vaulted cara- 

 pace and by other characters. As I have no typical specimens of 

 C. affinis for comparison, I am uncertain what value to attach to 

 these differences. 



Locality. — U. S. F. C. stations 992 and 993; off Marthas Vineyard; 

 36-39 fathoms; bottom temperature, 46.5°-48° F.; U.S.N.M. 43098, 

 43099; 5, male and female. 



CAMPYLASPIS VITREA Caiman (?). 



Campylaspis vitrea Calman, Mitth. Zool. Stat. Neapel, vol. 17, 1906, p. 425, pi. 

 28, figs. 28-34. 



An immature male specimen is referred with some doubt to this 

 species, with which it. agrees in general form. It differs, however, 

 from the type-specimens in the following characters: (1) It is con- 

 siderably larger (7.2 mm. as against 4.7 mm. for an immature female); 

 (2) the integument is much less pellucid; (3) the ridges on the cara- 

 pace are blunter and less elevated; (4) the two connecting ridges 

 between the upper and lower oblique ridges are much less conspicu- 

 ous; (5) there is a median posterior connecting ridge between the 

 transverse ridges crossing the postero-dorsal part of the carapace 

 (this median connecting ridge, however, is traceable in one of the 

 types, although not indicated in the figure); (6) the crests on the 

 abdominal somites are much less prominent, although arranged in the 

 same way. 



Locality.— Albatross station 2048; lat. 40° 02' 00" N.; long. 68° 50' 

 30" W.; 547 fathoms; bottom temperature, 29° F.; U.S.N.M. 12576; 

 1 male. 



