THE GKAPSOID CKABS OF AMEEICA. 



149 



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

 7 males, 5 females (2 ovig.) (31G00). 



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

 Johnson; 1 male, 2 females (48J:29). 



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

 Chompson; 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; 

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

 ture female (48130). 



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.i new species. 



riate 32. 

 Pinnixa tumida Streets, Bull. U. S. Nat. Mus., No. 7, 1S77, p. 115; not 



Pinnixa tumida Stimpsou, 18.58. 

 Pinnixa faba Rathbun, Hnrriman Alaska Exped., vol. 10, 1904, p. 188 

 (part: specimen from San Pedro). 

 Type-localitj/.— Under pier at Venice, California; from cloaca of 

 a sea cucumber; female holotype, Cat. No. 4558G, U.S.N.M. 



Diafjnosis.—Cari\i)iice 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 xery 

 fine granules not con- 

 tinued to hepatic region, \ i i\ V. ^ 

 side walls vertical, sub- 

 hepatic region prominent, 

 surface coarsely punctate 



toward the sides, furrow Fio. Ol.— Pinmxa BAnxnAnxi, olter maxillipeu of 



, , . T , . • 11 FEMALE (31510), X li>l. 



behind gastric region shal- 

 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. 



» p. S. Barnhai-t, formerly naturalist at the Venice Marine Biological Station. 



