58 



U.S. NATIONAL MUSEUM BULLETIN 295 



Figure 29.— Paranesidea sp. 2: A,B,E-HJ,K, Female USNM 121319; C,D, male USNM 

 121318; I, male USNM 121320. 



A-D, Carapace exteriors; E, third thoracic leg; F, second thoracic leg; G, furca; H, 

 first thoracic leg; I, fragmentary copulatory organ; J, muscle-scar pattern; K, antenna. 

 A-D, X 37; E,F,H,I, X 152; G,K, X 301. 



Dimensions.— Adult male USNM 121321, left valve, length 0.70 

 mm, height 0.43 mm; right valve, length 0.69 mm, height 0.39 mm. 



Affinities. — Carapace very close in shape, size, and punctate 

 surface to P. algicola, new species, but not quite as high, left valve 

 with less steeply arched dorsal margin, lacking sulcate break in slope 

 between marginal and medial surface areas. 



Paranesidea species 4 



Figure 28 a, h; Plate 1: figures 3, 4 



Material. — Nosy Be; 10 subfossil specimens. 



Dimensions.— USNM 121322, left valve, length 0.74 mm, height 

 0.45 mm; USNM 121323, right valve, length 0.75 mm, height 0.45 

 mm. 



Distribution. — Nosy Be; rare in carbonate sands on the back-reef 

 platform. 



