THE GEAPSOID CRABS OF AMERICA. 



149 



Quarantine Dock, Washington; in clams; sailors of Albatross; 

 1 males, 5 females (2 ovig.) (31600). 



Port Orchard, Puget Sound; from Schizothaerus nuttallii; O. B. 

 Johnson; 1 male, 2 females (48429). 



Humboldt Bay South, California ; in Tapes; June 1, 1911 ; W. F. 

 Thompson; 1 male (Stanford Univ.). 



Near Fort Bragg, Bodega Bay, California; July, 1893; S. J. 

 Holmes; 1 male cotype (20859). 



Middle part of San Francisco Bay, California; from clams; 

 12i-10 fathoms) ; Feb. 6, 1912; station 5709, Str. Albatross; 1 imma- 

 ture female (4843G). 



Off Catalina Island, California; 50 fathoms; H. N. Lowe; 1 male, 

 1 female, paper shell, with very small eggs (29946). 



San Diego, California; H. Hemphill; 1 male (17501). 



PINNIXA BARNHARTI. 1 new species. 



Plate 32. 



Pinnixa tumida STREETS, Bull. U. S. Nat. Mus., No. 7, 1877, p. 115; not 



Pinnixa tumida Stimpson, 1858. 

 Pinnixa faba RATHBUN, Harriman Alaska Exped., vol. 10, 1904, p. 188 



(part: specimen from San Pedro). 



Type-locality. Under pier at Venice, California; from cloaca of 

 a sea cucumber ; female holotype, Cat. No. 45586, U.S.N.M. 



Diagnosis. Carapace convex, truncate at sides. Dactyli of legs 

 nearly straight. Cheli- 

 peds large ; fingers widely 

 gaping; thumb strap- 

 shaped. 



Description of female. 

 Carapace hexagonal, very 

 convex in both directions, 

 sides truncate, antero-lat- 

 eral margin a line of very 

 fine granules not con- 

 tinued to hepatic region, 

 side walls vertical, sub- 

 hepatic region prominent, 

 surface coarsely punctate 



toward the sides, furrow Fio. Ol. PINNIXA BABNHAKTI, OUTER IJAXILLIPED o 



behind gastric region shal- PEMALE (31510) ' x 15i - 



low, 3 deep pits on each side anteriorly, posterior margin very con- 

 cave. Lobes of front prominent and arcuate, viewed from above. 

 Orbits broadly oval, filled by the eyes. Antenna as long as width 

 of front and one orbit. 



1 P. S. Barnbart, formerly naturalist at the Venice Marine Biological Station. 



