218 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 

 CANCER ANTHONYI Rathbun 



Plate 94, Figure 3 



Cancer anthonyi Rathbun, Proc. Biol. Soc. Washington, vol. 11, 1897, p. Ill 

 (type-localitj'', Playa Maria Ba\', Lower California; type, Cat. No. 19856); 

 Harriman Alaska Exped., vol. 10, 1904, p. 176, pi. 6, fig. 2. — Weymouth, 

 Stanford Univ. Publ., Univ. Ser. No. 4, 1910, p. 49, pi. 11, fig. 33.— Schmitt, 

 Univ. Calif. Publ. Zool., vol. 23, 1921, p. 227, pi. 35, fig. 1. 



Diagnosis. — Carapace widest at ninth antero-lateral tooth; pos- 

 tero-lateral teeth inconspicuous. Intermediate supra-orbital tooth 

 shallow. Under parts of uniform light color. 



Description. — Carapace very convex, uneven, furrows at midHle 

 well marked; surface smooth to the touch, formed by a pavement of 

 flat, close-set granules. Marginal teeth thick, blunt or subacute. 

 Antero-lateral margin very arcuate, nine-toothed, lateral tooth pro- 

 jecting little beyond the preceding. Postero-lateral margin with two 

 rudimentar}^, non-projecting teeth or emarginations. Median tooth 

 of front small and narrow. Upper margin of orbit between sutures 

 dentiform or lobiform; tooth low. Basal antennal tooth large, 

 advanced beyond front. Distal margin of merus of outer maxilliped 

 slightly curved and at right angles to outer margin, outer angle 

 rounded. Chelipeds and legs nearly smooth; merus with short distal 

 and subdistal spines; carpus with a broad, inner tooth and a tubercle 

 on upper surface just behind articulation with palm. The latter is 

 obscurely carinated; immovable finger deflexed. 



Allied to C. antennarius but antero-lateral teeth broader and less 

 projecting, front narrower and legs less hairy. 



CoZor.— Brownish red; under parts uniform light color. The black 

 color on the fingers extends less than half the length of the outer 

 margins. 



Measurements. — Male (holotype), length of carapace 42.4; width of 

 same 65; fronto-orbital width 18.2; width of front between antennae 

 6.3, width between tips of inner orbital teeth 10 mm. Largest speci- 

 men, male (23048), length 52.1, width 77.5 mm. 



Range. — From Monterey Bay, Calif., to Magdalena Bay, Lower 

 California, Mexico. 



Material examined. — 



CALIFORNIA.— Monterey Bay; lat. 36° 55' 30" N., long. 122° 

 02' 00" W.; 19 fathoms; fne. S. M. St.; temperature 55.4° F.; 

 March 15, 1890; station 3138, Albatross; 1 young (19977). 



Santa Monica Bay; received from Venice Marine Biological Sta- 

 tion: Off Venice; August 2, 1913; Anton Dohrn; 1 young male 

 (50178). Venice breakwater; 1 yoimg male (45584). Two miles 

 S. by E. from Playa Del Rey; August 8,1913; Anton Dohrn; 1 young 

 (50176). 



Vicinity of San Pedro; 1917; E. P. Chace; 1 young (54006). 



