142 -V£''r CliABS FEOM UEST IXDES—RATHllUX. 



Type locality.— FoTt Royal, Jamaica (No. 19405, U.S.:N".M.). 



Named iu honor of Lady Blake, Avife of the governor of Jamaica, 

 who has done much to promote scientific research on the island. 



1 do not lind in IJ. hhikitoia those differences in the sexes whicli are 

 described by Stimpson as occurring in the specimens referred to U. 

 lucasii, and it is probable that he had two species before him. 



PILUMNUS PANNOSUS, new species. 



rUnmnnn (icniinatiis. A. Milxk-Eowakds, Crust. Rog. ilex.. L'ilO, ]tl. li. tig. 4, 1880. 

 Not F. {icnimafiin, .Stiiupsou, 1860. 



This species resembles /'. (icminatus, Stinipson, but can readily be 

 distinguished. Carapace less quadrate than in F. ijemmatux, entirely 

 covered with a soft, thick i)ubescence, winch, however, is not evenly 

 distributed. Here and there, in addition, are longer, irregular club- 

 shaped setas which give thQ crab a very ragged appearance. Frontal 

 lobes subtriangular, granulate on the margin, more advanced near the 

 median line; interspace V-shaped. The antero-lateral projections look 

 like shalk)w lobes until the i)ubescence is removed, when they are seen 

 to be triangular, well- separated spines with slender ti])s pointing for- 

 ward. In P. gemmatus the lateral spines or teeth are shorter, stouter, 

 and less divergent. Upper margin of the orbit with two tuberculiform 

 spines near the inner angle and two between those and the outer 

 angle; lower margin with a row of short, stout, blunt spines of unequal 

 size, and a V-shai)ed notch next the outer angle. 



The upper portion of the hands is tuberculate, but the greater part 

 of the outer surface is smooth and naked. The smaller hand is almost 

 entirely covered with tubercles and granules, but its lower distal por- 

 tion is bare. In P. gemmatus the outer surface of both hands is entirely 

 tuberculate, the tubercles becoming smaller near the lower margin. In 

 P. ixnutosiis the i)ollex is smooth, and there are but a few tubercles on 

 the dactylus near its articulation. In P. gemmatus the tubercles extend 

 halfway down the u])per surface of the dactylus, and there are n few 

 on the outer surface ot the pollex. Both fingers are ver}' deeply grooved 

 in P. gemmatus; in P. pannosus the grooves are very shallow, and in 

 the larger (;heliped consist of series of shallow punct;c. The outer 

 lower margin of the merus in P. gemmatus is marked by a broad band 

 of tubercles; in P, ijaunosus this margin is smooth for its proximal 

 half. Ambulatory legs pubescent and bordered with fringes of club- 

 shaped seta* mixed with long fine hairs. Both carapace and legs have 

 the bead-like tubercles of P. gemmatus. 



Length of male, 8.G mm.; width, 12. 



Type locality. — Key West, Florida; collector, Ueury Hemphill (No. 

 13814, U.S.N.M.). 



Range. — (iulf of .Mexico and Florida Keys to 'Tamaica, where it was 

 taken in Kingston Harbor by Mr. P. \V. Jarvis. A much more abun- 

 dant species than P. gemmatus. 



