Report on the marine Isopoda of New England and adjacent waters . ,419. vittatns, 418,417,420,428,429, 431,, 301. Templeton, K., on Zeuxo, , , 298, , , SOL Verrill, A. E., on CMridotea Tuftsii, 34LVenns mercenaria, , J. O., on Anisocheirus, , A., on Limnoriadae, 37LWillemoes-Suhm, R. v., on Tanais, 418LWood-lice, Westwoodiana, 416. .- ,->r- • . [Report of the United States Commissioner of Fish and Fisheries. Part 1878. Opposite page 4(52.] 313, line o, for 79 read 371. 329, tt f ;


Report on the marine Isopoda of New England and adjacent waters . ,419. vittatns, 418,417,420,428,429, 431,, 301. Templeton, K., on Zeuxo, , , 298, , , SOL Verrill, A. E., on CMridotea Tuftsii, 34LVenns mercenaria, , J. O., on Anisocheirus, , A., on Limnoriadae, 37LWillemoes-Suhm, R. v., on Tanais, 418LWood-lice, Westwoodiana, 416. .- ,->r- • . [Report of the United States Commissioner of Fish and Fisheries. Part 1878. Opposite page 4(52.] 313, line o, for 79 read 371. 329, tt f ; ; 383, 22, 23, 20, 3889 332. 334. 383. 93 387. 398, 9, 104 398. ; 11, 108 402. • •/. [PROM THE AMERICAN JOURNAL OF SCIENCE AND ARTS, VOL. XV, MAY. 1878.] Descriptions of new Genera and Species of Isopoda. from NewEngland and Adjacent Regions; by OSCAR HARGER. BriefContributions to Zoology from the Museum of Yale College. THE genera and species described in the present paper are,except the first, marine and were, mostly, collected by theUnited States Fish Commission, along the New England complete descriptions with figures of all the new, andmost of the old species, are nearly ready for publication in theReport of the Commissioner. As it seems desirable, however,to give a wider publication to the genera and species believedto be new, the following diagnoses are here inserted. Actoniscus, gen. nov.* Eyes small. Antennae geniculate at the third and fifth seg-ments; flagellum four-jointed. Terminal segment of maxilli-peds lamelliform. Legs all alike. Pleon of six distinct seg-ments. Basal segments of uropoda dilated and simulating thecoxae of the preceding segm


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