THE GRAPSOID CRABS OF AMERICA. 



109 



Locality. Gulf of California at Angeles Bay, Mexico. Known 

 only from type female, which was destroyed in San Francisco earth- 

 quake fire. 



PARAPINNIXA HENDERSONI, new specie.. 



Plate 26, flgs. 1-6. 



Type-locality. Los Arroyas, Cuba : Toma* Barrera Exped. ; holo- 

 type male, Cat. No. 48710, U.S.N.M. 



Diagnosis. Carapace more than twice as wide as long. Movable 

 finger with basal tooth, immovable finger without teeth. Fingers not 

 gaping. Dactyli of legs similar, short and hooked. Propodus of 

 second and third legs large, as wide as their respective merus joints. 



Description of male. Carapace smooth, shining, a little over twice 

 as wide as long, longitudinally very convex, transversely slightly 



Fio. 59. PARAPINNIXA HKNDERKONI, FEMALE (48711), OUTBB MAXILLIPED, X 61. 



convex, sides arcuate, at the widest part margined by a thin rim 

 which is pubescent; anterior margin nearly straight, a row of four 

 distant pits behind margin, fronto-orbital width about one-third of 

 carapace width ; front broadly triangular, deflexed, point invisible in 

 dorsal view, edge marginate and pubescent ; further back a pubescent 

 groove runs subparallel to frontal margin and terminates in orbital 

 margin ; below this groove are three pits in a triangle. Orbits circu- 

 lar, filled by eyes, corneae black, visible from above. Antennular 

 cavities very large, not wholly separated from each other or from the 

 orbits, bordering on the latter almost to their highest point and ex- 

 tending sideways farther than the minute antennae. 



Buccal cavity small, subtriangular ; merognath transversely elon- 

 gate, triangular; palp small, largety folding under merus. its outer 

 edge straight and longitudinal, as is also the greater part of the dis- 

 tal border of merus; propodus very elongate, dactylus semioval. 



