SYNOPSES OF NORTH-AMERICAN 
INVERTEBRATES. VIII. 
THE Isopopa. — PART II. 
ASELLOTA, ONISCOIDEA, EPICARIDEA. 
HARRIET RICHARDSON. 
In addition to the references to the literature already given 
in Part I of the Synopsis of the Isopoda is the following list of 
papers pertaining especially to the fresh-water forms. 
1871. 
1874. 
1876. 
1876. 
1881. 
1890. 
1899. 
PACKARD, A. S. The Mammoth Cave and its Inhabitants. Amer. 
Nat. Vol. v, p. 751. 
SMITH, S. I. The Crustacea of the Fresh Waters of the United 
States. Rept. U. S. Fish Comm. for 1872-1873. Pp. 657-661. 
FORBES, S. A. List of Illinois Crustacea, with Descriptions of New 
Species. Budi. I. State Lab. N. H., No. 1, pp. 8-13. 
HARGER, Oscar. Description of Mancasellus brachyurus, a New 
Fresh-Water Isopod. Amer. Journ. Sci. (3). Vol. xi, pp. 
304, 305. 
PACKARD, A. S., and Core, E. D. The Fauna of Nickajack Cave. 
Amer. Nat. Vol. xv, pp. 879-880. 
GARMAN, H. A New Fresh-Water Crustacean. Bull. Essex 
Institute. Vol. xxii, pp. 28-30. 
Hav, W.P. Description of a New Species of Subterranean Isopod. 
Proc. U. S. Nat. Mus.’ Vol. xxi, pp. 871, 872. 
SYNOPSIS OF THE ISOPODA (continued). 
IV. ASELLOTA. 
a. Eyes generally present. First pair of legs prehensile or subcheliform. 
à. 
ast three pairs of legs ambulatory, not natatory. 
Three posterior segments of thorax not sharply marked off from the 
four anterior ones, and not smaller. Caudal segment large, shield- 
like. Eyes, when present, lateral or subdorsal, not placed on 
peduncle-like projections of the head. Superior antennz issuing 
close together. Legs subequal in length. 
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