446 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Maceio, Alagoas, Brazil; coral reef; July 26, 1899; A. W. Greeley, 

 Branner-Agassiz Expedition; 1 male (25726). 



Off Abrolhos Islands, Brazil; 30 fathoms; U. S. Coast Survey Str. 

 Hassler; 1 female, holotype (2981, M. C. Z.). 



MICROPANOPE BARBADENSIS (Rathbun), new combination 



Pilumnus barbadensis Rathbun, Bull. Labor. Nat. Hist. State Univ. Iowa, vol. 

 9, 1921, p. 73, pi. 1 (type-locality, Barbados; type in Mus. S. U. I.). 



Diagnosis. — Carapace broad-oval, frontal lobes oblique. Outer 

 orbital fissures absent or minute. Color of immovable fingers cover- 

 ing distal two-thirds only. Minor palm rough outside, major palm 

 rough only on its upper, proximal portion. 



Description. — Carapace suboval, antero-lateral margin arched but 

 shorter than postero-lateral. Surface covered with a short, soft, 

 sparse pubescence which does not conceal the carapace. Furrows 

 between regions and gastric subregions well marked. Surface mi- 

 nutely roughened, especially along front and antero-lateral regions 

 where the granules are acutely pointed. Lobes of front oblique, edge 

 slightly convex save at outer end which is right angled in smaller 

 specimens but has a small, more or less pointed tooth in the old 

 (female, 12.3 mm. wide); edge crenulate. Inner angle of orbit acute; 

 upper margin sloping obhquely outward and backward to a slight 

 outer tooth; edge finely denticulate; notches very small, or in the 

 old disappearing altogether. Antero-lateral margin armed with three 

 slender, acuminate spines, each set in a stout, triangular, denticulate 

 base. Carapace widest at the posterior pair of these spines; the two 

 interspaces are subequal; between the anterior spine and the orbital 

 angle there is a spinule, Uttle larger than the sharp denticles of the 

 neighboring surface, and confused in dorsal view with several subhe- 

 patic spinules. Suborbital region covered with coarse, acute granules 

 Lower orbital margin more advanced than upper, its spinules more 

 elongate; s'pinule at inner angle a little larger and more pronounced. 



Chelipeds very unequal, thinly clothed with longer hairs than the 

 carapace; carpus covered with acute granules, and having two spin- 

 ules, one above the other at inner angle. Only the proximal third or 

 less of the major palm is rough with granules, the roughness forming 

 an obUque band bordering the carpus but stopping short of the 

 lower margin; the proximal two-thirds of the upper edge is separately 

 roughened; remainder of palm smooth and naked; the Florida female 

 is an exception, the granules covering all but the distal end of the 

 palm; fingers of male dark brown with light tips, color not reaching 

 base of immovable finger, color Line vertical; a narrow interdigital 

 gape. In the minor cheliped the entire outer surface of palm is very 

 rough, the granules arranged for the most part longitudinally; fingers 

 less gaping, deeply grooved, ridges very rough. In the female, the 



