36 



U.S. NATIONAL MUSEUM BULLETIN 29 5 



Figure U.~Neonesidea pateriformis, n. sp. A,B,E,G,H, Male USNM 121281; C,D,F, 

 female USNM 121282. 



A-D, Carapace exteriors; E, brush-shaped structure; F, genital lobe; G, furca; H, 

 copulatory organ. A-D, X 49; E, X 472; F-H, X 301. 



Adult female USNM 121282 from Nosy Be, left valve, length 0.79 

 mm, height 0.47 mm; right valve, length 0.79 mm, height 0.44 mm. 



Affinities. — The carapaces of the Ifalik Atoll specimens are in- 

 distinguishable from those of the Indian Ocean localities, although 

 some minor differences are apparent in the male copulatory organs. 

 Possibly these should be separated as subspecies. 



Neonesidea species 2 



Figure 10a 



Material. — Nosy Be, one female living, 205 subfossil specimens. 



Dimensions.— Adult female USNM 121285, left valve, length 1.04 



mm, height 0.68 mm; right valve, length 1.02 mm, height 0.60 mm. 



