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Show 1896.] TERRESTRIAL ISOPOU CRUSTACEANS. 389 Species of Armadilloidean Isopods seem to be numerous in the tropical regions, although they have until now generally escaped the collector's bottle. Their small size (seldom reaching to 10 millimetres in length), their dull colour, and above all the scarcity of individuals have proved a good protection. The species are remarkably localized, and none of the thirteen of which specimens are sent to m e have as yet been mentioned by any of the authors who have described Isopods from Central America, the Antilles, or the neighbouring parts of South America l, except A. grenadensis. The following species are represented in the collection:- 1. ARMADILLO TENUIPUNCTATUS, n. sp. Fig. 1. 1 a. Cephalon and first two segments of pereion (upperside). 1 b. Cephalon and first two segments of pereion (underside), p, prosepistoma; /, double-jointed flagellum of antennas; c, coxopodite. 1 c. Fifth segment of pleon, pleotelson, uropoda (upperside). ex, exopodite of uropoda. 1 d. The same (underside), b, basis of uropoda; en, endopodite. Body rather wide, moderately convex, slightly tuberculated on 1 For the bibliography of the terrestrial Isopods of this region consult:- SAUSSUEE (de).-Memoire pour servir a l'Histoire naturelle du Mexique, des Antilles et des Etats Unis: I. Crustac<§s. (1858.) MIERS.-On a Collection of Crustacea, chiefly from S. America, Proc. Zool. Soc. 1877. BUDDE-LUND.-Crustacea Isopoda terrestria. (1885.) Id. -Landisopoder fra Venezuela indsamlede af Dr. Fr. Meinert. (1893.) DOLLFUS.-Voyage de M . E. Simon au Venezuela: Isopodes terrestres. (1893.) |
