BY J. S. KINGSLEY. 107 



Penseus setiferus Linn. 



Boston Society: Guatemala (C. H. Van Patten), Port Orange, Fla. 

 (S. N. Cliamberlain). Peabody Academy: Charleston, S. C. (A. S. 

 Packard, jr.). 



Genus PAL^MON Fabr. 

 Palsemon africanus n. s. 



Carapax microscopically granulate, hepatic spine "present. Rostrum 

 shorter than the antennal scales, with nine or ten teeth above and five 

 or six below, the tip three toothed. First pair of feet slender; the 

 middle of the carpus extending as far forward as the tip of the anten- 

 nal scale ; hand about one-third the length of the carpus, fingers with 

 pencils of hairs. Second pair of feet equal, greatly elongate and 

 armed with longitudinally arranged spiniform tubercles ; the meros is 

 shorter than the carpus and about equal to the palm. Carpus slightly 

 shorter than the hand, fingers occupying from one-third to two-fifths 

 of the manus, completely closing, the occludent margins smooth, 

 toothless and covered with hairs. Its nearest allies are P. idee, Heller, 

 from which it difiers in the shorter carpus and longer meros ; P. acan- 

 thiirus, which has a longer and reflexed rostrum, and P. japonicus de 

 Haan, in which the first pair of feet are much longer. It may prove to 

 be P. macrohracliion Hecklots (Addit. Faun. Africam Occid.) but the 

 description of that species is too imperfect to decide the question. 



AVest coast of Africa; P. du Chaillu (Philadelphia Academy). 

 West coast of Africa ; Dr. Perkins (Boston Society of Natural His- 

 tory, type). 



Palsemon grandimanus Randall. 



The types (two in number) of this species are still preserved in the 

 Philadelphia Academy. 



Palsemon jamaicensis (Herbst) Oliv. 



P. carcinus Leach, Zool. Misc., ii, p. 92, pi. 92, 1815. 



P. punctatus Randall, Jour. Phil. Acad., viii, p. 145, 1839. 



An examination of Randall's type of P. punctahis, which is pre- 

 served in the museum of the Philadelphia Academy of Natural Sciences, 

 shows it to belong to the well-known P. jamaicensis. In the same 

 collection are specimens from St. Martin's (Dr. Rigjersma), San Do- 

 mingo (W. M.Gabb), Guatemala (W. S. Vaux), Cuba (Guerin), Brazil 

 (Dr. T. B. Wilson). In the Peabody Academy of Science there are 

 specimens brought by J. A. McNiel from Polvon, on the west coast of 

 Nicaragua. 



