THE CANCROID CRABS OP AMERICA 479 



The palms are furnished with a large lobe within, at the proximal 

 end of the upper surface. On the distal upper quarter of the inner sur- 

 face of each palm there is a suboval stridulating area formed of parallel 

 oblique striae; these are entire in the male and in the major chela of 

 the female, but are broken into short lengths and utriculiform granules 

 in the minor chela of the female. This area as in froritalis is played 

 upon by a series of small, elongate, whitish tubercles; two are on the 

 outer and middle tubercles below the orbit, two are on the lobules of 

 the second antero-lateral lobe, two others on the adjacent end of the 

 third lobe, and one is near the angle of the buccal cavity; besides 

 there are several granules on the suborbital and subhepatic region. 

 A young female only 10.2 wide shows the stridulating apparatus. 



The dark color of the fingers very nearly covers them to the base 

 in the male and major chela of the female; in the minor chela of the 

 female it is more extensive on the immovable finger, reaching from 

 the interdigital sinus obliquely backward some distance on the palm. 



Color. — Of preserved specimen reddish, mottled or banded. 

 (Stimpson.) 



Measurements. — Female holotype, total length of carapace 30.4, 

 width of same 43, fronto-orbital width 20, width of front 9.5 mm. 

 Male (17301), length 35.5, width 52 nrna. Female (17301), length 

 38.8, width 56.3 mm. 



Range. — Pacific side of Costa Rica and Panama. 



Material examined. — Punta Arenas, Costa Rica; specimen in 

 Copenhagen Museum. 



Panama: J. H. Sternbergh; 1 female holotype, 1 j^oung female 

 (2050). Henry A. Ward; 1 male, 1 female (17301). 



Remarks. — In the female, 17301, the major chela is abnormal; 

 although of large size, the fingers partake of the nature of the minor 

 fingers, being more elongate than in the type female, the fixed finger 

 having five teeth in place of three and the black color running along 

 the base of the palm as in the minor chela. 



MENIPPE NODIFRONS Stimpson 



Plate 198, Figure 3; Plate 199 



Pseudocarcinus rumphii Milne Edwards, vol. 1, 1834, p. 408. Not Cancer 



rumphii Fabricius, Ent. Sys., Suppl., 1798, p. 336. 

 Menippe rumphii Dana, U. S. Expl. Exped., vol. 13, Crust., pt. 1, 1852, p. 179. — 



Smith, Trans. Connecticut Acad. Sci., vol. 2, 1869, p. 34. — Stimpson, Ann. 



Lye. Nat. Hist. New York, vol. 10, 1871, p. 106 [16].— A. Milne Edwards, 



Crust. Reg. Mex., 1880, p. 263, pi. 48, figs. 4-46. 

 Menippe nodifrons Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, 1859, p. 53 



[7] (type-locality, Indian River, Florida; type not extant). 

 Carpilius corallinus Gundlach and Torralbas, Anales Acad. Cien. Habana, 



vol. 36, 1900, p. 367, text-fig. 4 G. 

 Menippe rumphi? A. Milne Edwards and Botjvier, Mem. Mus. Comp. ZooL, 



vol. 47, 1923, p. 316. 



