THE CANCROID CRABS OF AMERICA 259 



Curagao, Venezuela; 1920; C. J. van der Horst: Caracas Bay; in 

 coral; April 7; 1 male (Amsterdam Mus.). Spanish Port; May 20; 

 1 female (56869). 



Off Cape Frio, Brazil; 35 fathoms; Hassler Exped.; 1 male (2532, 

 M.C.Z.). 



Ascension Island; 1889; WHliam Harvey Brown, U. S. Eclipse 

 Expedition to West Africa; 1 young (17805). 



ACTAEA SULCATA Stimpson 



Plate 105, Figures 3-4 



Aciaea sulcata Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, 1860, p. 203 

 [75] (type-locality, Cape St. Lucas; type not extant). — A. Milne Edwards, 

 Nouv. Arch. Mus. Hist. Nat., Paris, vol. 1, 1866, p. 267. — Odhner, Gote- 

 borg's K. Vet. Handl., Fjarde Foljden, vol. 29, No. 1, 1925, p. 78, pi. 5, fig. 6. 



Diagnosis. — Carapace nodulous, nodules deeply and widely sepa- 

 rated, less prominent than in rufopunctata nodosa, their granules 

 fused. Nodules D and E remarkably small. Nodules 1 F fused 

 with frontal margin. 



Description. — Upper surface of carapace divided into 30 flattened, 

 granulate lobules (besides the small ones around orbits), separated 

 by deep pubescent sulci. Owing to fusion of granules, the surface 

 of lobules appears feebly granulate. Posterior lobules less prominent, 

 more distinctly granulated and sometimes concealed by pubescence. 

 According to Odhner the pattern corresponds to that of A. rufo- 

 punctata with few exceptions: 3 M is rudimentary [as in r. nodosa], 

 4 L and T are imited, lobules 1 F are square and fused with the 

 frontal margin; marginal teeth D and E are separate and very small. 

 Furrows between lobules are very wide and covered with a short 

 dark tomentum; three pairs of bunches of hair on carapace. 



Chelipeds nodose above lilce carapace; granules similar, fused, 

 especially on carpus; three such nodules on upper margin of palm; 

 palms and base of fingers strongly granulate externally. Fingers 

 partially excavate at tips. On the hairy ambulatories the granules 

 are fused and form on merus and carpus raised bands which on 

 carpus of first three pairs are u-form and make one continuous 

 crest with those on merus. 



Color. — Bright red somewhat maculated or mottled with white. 



Measurements. — Female holotype, length of carapace 9.4 mm. 

 (0.37 inch), width 14.2 mm. (0.57 inch) (Stimpson). 



Range. — Cape St. Lucas, Lower California, Mexico (Stimpson), 

 to San Jose, Pearl Islands, Bay of Panama, 15 fathoms (Odhner). 



Material examined. — Maria Madre Island, Mexico; March-May, 

 1927; from Secretaria de Agricultura y Fomento, Mexico, through 

 A. L. Herrera; 1 male (60721). 



Maria Madre Island; E. part of bay; 5-8 meters; May 17, 1925; 

 F. Contreras; California Acad. Sci.; 1 male (62696); 1 female, returned. 



