1921] Schmitt: The Marine Decapod Crustacea of California 257 
ii, Chela with immovable finger not deflexed. 
a. Immovable finger straight or nearly so; lower margin of 
palm not convex. Carapace about twice as wide as 
long. (Known only from San Francisco Bay.) 
franciscana, p. 263. 
b. Immovable finger curved upward distally; lower margin 
of palm convex. 
1. Carapace more than twice as wide as long; male not 
known. (Known only from off Catalina Island.) 
hiatus, p. 265. 
ui. Carapace less than twice as wide as long. 
* Carapace laterally tapering, about one and _ three- 
fourths times, more or less, as wide as long. 
Sides of male abdomen convex. (Not known 
south of San Francisco Bay.) 
schmitti, p. 264, 
** Carapace laterally subtruncate; about one and two- 
thirds times as wide as long. Sides of male abdo- 
men more or less straight, not convex, first seg- 
ment very wide at base. (Known only from 
Mont Bay. 
onterey y-) weymouthi, p. 266. 
Pinnixa longipes (Lockington) 
Tubicola longipes Lockington, Proc. Calif. Acad. Sci., 7, 55, 1876 (1877). 
Pinnixa longipes Holmes, Proc. Calif. Acad. Sci., (2), 4, 573, pl. 20, 
figs. 19-20, 1894 (1895); Occas. Papers Calif. Acad. Sci., 7, 92, 1900; 
Rathbun, H. A. E., 10, 188, 1904; Weymouth, Stanford Univ. Publ., 
Univ. Ser., no. 4, 58, text fig. 6, 1910; Rathbun, Bull. U. 8. Nat. Mus., 
97, 137, figs. 80, 81, 1918; Nininger, Jour. Ent. Zool., Pomona Coll., 10, 
41, fig. 31, 1918. 
Fig. 152. Pinnixa longipes (after Holmes). 
Characters.—Carapace considerably more than twice as wide as long, some- 
what flattened above, and furnished with a transverse depression behind the gastric 
area. Chelipeds small, short, hairy; chelae stout, oblong, compressed. First two 
pairs of ambulatory legs slender, and furnished with slender, nearly straight dac- 
tyls which are about equal to the propodi in length; second pair slightly larger 
than the first; third pair of ambulatory legs enormously developed; merus with 
a kind of flange on the posterior margin, dactyl stout, somewhat curved, much 
