THE CANCROID CRABS OF AMERICA 419 



In abdomen of male the third segment is nearly as wide as first and 

 rounded at ends; sixth broader than long and converging a little 

 toward fifth; last segment short, subtriangular, tip rounded. 



Color. — Carapace above deep rose and yellowish white. Chelipeds 

 deep rose above, whitish yellow below, fingers light brown. Legs 

 slightly tinged with rose above, yellowish white below; dactyls a light 

 ashen gray. (Milne Edwards and Lucas.) 



Male (60731) almost seal brown, fingers burnt umber fading out to 

 whitish tips, chelae more hazel. Female (60731) more bay color on 

 carapace, single chela tawny, fingers a bit lighter, tips still lighter. 

 In male and female the part of the abdomen visible from above has a 

 row of white spots down the median line, the first one on the hind 

 edge of the carapace, abdomen mottled whitish bistre. (Schmitt.) 



Comparison with E. transversus. —C&r&pace less oval, more hexagonal, 

 and devoid of the fine transverse rugae present on the anterior half 

 in transversus. Front more advanced beyond inner orbital angles, 

 submedian lobes straight instead of convex, outer lobe narrower. 

 Outer orbital angle small, pointed, and distinguishable from the 

 second antero-lateral lobe, not completely fused with it. Transverse 

 ridge on fifth lateral tooth high. Postero-lateral margins a little 

 more concave. In the full grown male the fingers of the major 

 cheliped gape very little, less than in transversus, and are more elon- 

 gate, the dactylus less arched and the propodal finger more deflexed. 



Measurements. — Ovigerous female (16213), length of carapace 15, 

 width of same 22, fronto-orbital width 11, width of front 6 mm. Male 

 (2245, M. C. Z.), length of carapace 24.3, width of same 35.6, fronto- 

 orbital width 15.8 mm., width of front 9.3 mm. 



Eange.*^ — Puna, Ecuador (Cano), to Magellan Strait. 



Material examined. — 



PERU. — 2 males, 1 female (Paris Mus.), labeled "peruvianus," 

 probably cotypes. Callao; F.H.Bradley; 1 male, 2 females (1 ovi- 

 gerous) (16213), from P. M. Y. U. Callao; 1 male, 2 females (4803, 

 M. C. Z.). Callao; specimen in Brit. Mus. "Chili"; 1 male (Paris 

 Mus.), probably type of Panopeus crenatus. Off San Lorenzo Island, 

 Callao Bay; dredged; November 7, 1926; W. L. Schmitt; 1 male, 1 

 female, both small (60731); also 2 young, representing a postlarval 

 stage (62715); identification probably correct. Paracas Bay; Hassler 

 Exped.; 3 males, 4 females (2245, M. C. Z.). 



CHILE. — Valparaiso; J. D. Dana, U. S. Expl. Exped.; 1 male, 1 

 female (1924, M. C. Z.). 1872; Hassler Exped.: Caldera, May 16, 

 5 males, 3 females (2 ovigerous) (2246, M. C. Z.); Talcahuano, 

 Apr., 4 males, 6 females, 2 young (2244, M. C. Z.): Juan Fernandez 

 Ids., May 1, 1 male (2247, M. C. Z.); Port Gallant, Magellan Strait, 

 Mar., 1 male (2313, M. C. Z.). 



<' The locality, Esquimalt Harbour, B. C, assigned to this species by Spence Bate is erroneous (Lord's 

 A Naturalist in Vancouver Island and British Columbia, vol. 2, 1866, p. 270). 



