THE GRAPSOID CKABS OF AMEEICA. 



165 



Measurements. Female holotype, length of carapace 3.6, width of 

 same 7.7 mm. 

 Range. Known only from the type-locality. 



PINNIXA TUBICOLA Holmes. 



Plate 36, figs. 5-8. 



Pinnixa tuMcola HOLMES, Proc. California Acad. Sci., ser. 2, vol. 4, 1894, 

 p. 569, pi. 20, figs. 17 and 18 (type-localities, Trinidad, Cape Mendocino 

 and Bodega Bay, California ; types not extant) ; Occas. Papers Califor- 

 nia Acad. Sci., vol. 7, 1900, p. 91. RATHBTJN, Harriinan Alaska Exped., 

 vol. 10, 1904, p. 187. WEYMOUTH, Leland Stanford Jr. Univ. Publ., 

 Univ. ser. No. 4, 1910, pi. 57, text-fig. 4. 



Pinnixa longipes WEYMOUTH, Leland Stanford Jr. Univ. Publ., Univ. ser. 

 No. 4, 1910, p. 58 (part: two young specimens). 



Diagnosis. Carapace 2-J times as broad as long in female, twice as 

 broad as long in male. Propodus of third leg wider at distal end 

 than base of dactylus. Chelae smooth, fingers hooked. 



FIG. 103. PINNIXA TDBICOLA. a, OUTER MAXILLIPED OF FEMALE (20860), X 22* ; 6, AB- 

 DOMEN OF MALE, TRINIDAD, X 15J ; c, LEFT CHELA OF MALE, X 6, AFTER WEYMOUTH. 



Description of female. Carapace very wide, subcylindrical, slop- 

 ing rather steeply on all sides toward the margins. Gastro-cardiac 

 depression shallow. No cardiac ridge, only a smoothly rounded trans- 

 verse elevation. Posterior margin very wide, slightly concave. 

 Front not projecting beyond general contour. Outer portion of 

 antero-lateral margin ridged. 



Chelae smooth, narrowing distally, upper and lower margins of 

 palm convex, a deep sinus below union of palm and immovable 

 finger, fingers meeting or almost meeting, tips strongly hooked and 

 crossing each other, each armed with a small tooth (which may be 

 absent) the propodal tooth distal to the dactylar. 



