138 



BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



Male abdomen tapers evenly from base to last segment, first two 

 segments shortest, last segment broader than long, rounded at tip. 



Measurements. — Ovigerous female (178G2), length of carapace 

 2.2, ^Yidth of same 5.7 mm. 



Habitat. — Commensal in tubes of annelid worms {Clymenella) . 



Range. — California: Tomales Bay to San Pedro. 



S'pecimen examined. — Tomales Ba}', California, in tube of ^lalda- 

 nid; May, 187G; 1 female ovigerous (17SG2). Perhaps received from 

 r<orkington, but not so labeled. 



PINNIXA FLORIDANA, new species. 

 Plate 30, figs. 4-7. 



Pinnixa cylindrica Kingsley, Proc. Acad. Nat. Sci. PLiladelpliia, 1879, p. 

 402 (part: some specimens from Sarasota Bay). 



Type-locality. — Marco, Florida; Henry Hemphill; female holo- 

 type. Cat. No. G99G, U. S. N. M. 



Diagnosis. — Carapace twice or little more than twice as wide as 

 long. ]\Ierus of third leg less than twice as long as wide. Dactyll 

 of legs straight. Chelae Aveak, granulate. 



Description of female. — Carapace appearing suboblong, the an- 

 tero-lateral angle forming a sort of shoulder, the side walls steep 



Fig. 82. — Pinnixa floeidana. a. Abdomen of male (49249) X 19 ; 6, outer maxilli- 



PED OF FEMALE PARATITE (G99G), X 19. 



and tapering outwardly; surface smooth and punctate; gastro-car- 

 diac groove shallow, cardiac region elevated but without ridge, an- 

 tero-lateral margin, up to the cervical suture, a sharp, milled crest; 

 posterior margin concave. Front truncate, not advanced. Orbits 

 inclined forward outwardly in dorsal view, and downward in front 

 view. 



Chelipeds weak, hairy; chelae tapering distally; propodus with 

 denticulate upper margin, a row of sharp granules near lower mar- 

 gin, continued feebly on finger, a row of granules at middle, and 

 scattered granules above middle ; fingers nearly horizontal, not gap- 



