50 BULLETIN 129, UNITED STATES NATIONAL MUSEUM 



hepatic region tumid and bearing a spine or tubercle. Pterygosto- 

 mian ridge having a similar tubercle at its middle. Rostrum thick, 

 triangulate, longer than broad and varying considerably in length, 

 acuminate, with two double rows of curved setae above. A small 

 postorbital spine or tubercle. Segments of male sternum convex, 

 deeply separated. 



Basal antennal article narrow anteriorly; posteriorly it bears a 

 thick, compressed protuberance nearer the inner than the outer 

 margin. Chelipeds in adult male robust, pubescent; merus trihe- 

 dral, curved, outer margin spiny; carpus with a supero-posterior 

 spine; palm inflated and with several spiny projections, especially 

 on lower edge; fingers shorter than palm, gaping in basal three-fifths. 

 Chelipeds in female and young slender, hands semicylindrical, fingers 

 nearly meeting. Legs long and slender, especially of first two pairs, 

 long-hairy, hairs on upper surface curled; dactyli falciform, dentate, 

 in the first pair about one-third the length, in the other pairs about 

 half the length of the penultimate articles ; these last have no thumb- 

 processes but in the last two pairs are slightly thickened in distal 

 half. 



Color. — Plain pale brown (Hilton). Some formalin specimens are 

 brown and white mixed. 



Measurements. — Male (21862), length of carapace 24.1, width 16, 

 length of first leg about 57.5 mm. Female (50614), length of carapace 

 18.2, width 13.3 mm. 



Range. — From San Luis Obispo, California (Lockington), to Gulf 

 of California. Depth, 1 to 47 fathoms. 



Material examined. — See table, page 51. 



PODOCHELA CURVIROSTRIS (A. Milne Edwards) 



Plates 19 and 210 



Anisonotus curvirostris A. Milne Edwards, Crust. Reg. Mex., 1879, p. 196, 

 pi. 36, figs. 3-3d (type-localities, Barbados, 100 fathoms, and near Havana, 

 127 fathoms; cotypes in M. C. Z.). — A. Milne Edwards and Bouvier, 

 Mem. Mus. Comp. Zool., vol. 47, 1923, p. 364, pi. 10, figs. 4 and 5, text-figs. 

 14 and 15. 



Podochela spinifrons Rathbun, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 51 

 (type-locality, off Havana, 199 fathoms; holotype. Cat. No. 9510, 

 U. S. N. M.). 



Diagnosis. — Rostrum terminating in a long arched spine. Post- 

 orbital tooth well developed. Bases of legs ornamented with lamini- 

 form plates inclosing shallow cavities. Sternum of male formed of 

 plates separated by deep grooves. 



Description. — Carapace spinulif erous ; an erect cardiac spine; 

 gastric region with a spine directed forward and in front of it a spiny 

 tubercle; rostrum long, sharp, arched, a median spinif erous crest; 

 orbit with an erect crest bearing spinules. and two slender spines; 



