10 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 121 



Mandible (figs. 4:g~i): Coxale endite (fig. 4A) bifurcate, 1 prong 

 annulate, other nonannulate, both with spines, more spines on annu- 

 late prong. Basale with 7 bristles, 4 ventral, 3 dorsal. Exopodite 

 with 2 bristles, outer bristle about half length of inner bristle. Endop- 



mandible 



frontal organ 

 2"d antenna 



-nnaxilla 



5th limb 

 - furca 



^ adductor muscles 

 6»hlimb 



epipodial appendage 

 (on 5^ linnb) 



7th limb 



Figure 1. — Pseudophilomedes ferulanus: ventral view, removed from shell; all bristles, 

 muscles, and appendages not shown; appendages and joint positions generalized. 

 (Spec. 1, Gosnold Sta. 1857.) 



