54 



U.S. NATIONAL MUSEUM BULLETIN 29 5 



Figure 27— Par ane side a sp. 1: A, USNM 121315; B, USNM 121316. Paranesidea ? 

 cheroconcha, n. sp.: C,D,I, female USNM 121306. B. {Bairdoppilata?) sp. 3: E, USNM 

 121362; F, USNM 121360; G, USNM 121361; H, USNM 121359. 

 A-H, Carapace interiors, X 29; I, distal antenna! claws, X 301. 



Fused claw of fifth antennal podomere not serrate. 



Material. — Two recently dead females from Anton Bruun station 

 372P and one from 403F. The dried appendages are fragmentary and 

 jdeld little information. 



Dimensions. — Adult female specimen USNM 121306, left valve, 

 length 1.03 mm, height 0.67 mm; right valve, length 1.04 mm, height 

 0.65 mm. 



Affinities. — The single specimen from Anton Bruun 403F is 

 much less abundantly tuberculate, having spines distributed only 

 near the free margins. The raised fulcral point is a structure not yet 

 seen in any other species of Bairdiidae. 



Paranesidea "ialbatrossa, new species 



Figure 28j-m 



Etymology. — For the U.S. Fisheries Steamer Albatross, whose 

 worldwide sediment collections have contributed valuable assemblages 

 of abyssal ostracodes. 



