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PEOCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 68 



catharinensis. Side-plate 2 rectangular in outline, front and back 

 margins nearly parallel, lower margin transverse, slightly convex 

 and provided vs^ith a row of setules. Side-plate 3 extending slightly 



Fig. 7. — iBatba kecxangll.vxa SiiuB-viAKiiK, Sa.\ FBAXcisyuiTO Bay, Gulf of California. 

 Female. — a. Head and nusT two thoracic segments; h, left mandible; c, palp of 

 left mandible ; d. right mandible ; e, palp of right .mandible ; f, maxilla 1 ; 

 g, maxilla 2 ; h, maxilllped ; i, lower lip 



