9 



PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 157 

 NOTES OTS NEW ENGIiAND ISOPODA. 



By OSCAR KARC^ER. 



The marine Isopoda collected by the United States Commission of 

 Fish and Fisheries having been placed in my hands by Professor Yer- 

 rill, a report has been prepared including full descriptions, with figures 

 of most of the species, except the Bopyridce. Besides the collections 

 of the Fish Commission, I haA^e, through the kindness of Professor Yer- 

 rill, had access to other extensive collections made principally hj him- 

 self and Prof. S. I. Smith, at various points along the coast from Great 

 Egg Harbor, Kew Jersey, to the Bay of Fundy, as is more fully detailed 

 in the report now ready for publication. On account of unexpected 

 delay in the publication of the report, it has been thought best to pre- 

 pare the following brief summary of its contents, with especial reference 

 to facts not hitherto published. Only such references are here given as 

 are necessary to the understanding of the names adopted, and, in gen- 

 eral, the distribution on the New England coast only is indicated. 



The Bopyridce have been identified by Professor S. I. Smith, who has 

 also rendered other important assistance in the preparation of the re- 

 port, of which the present paper may be regarded as an abstract. 



The Oniscidce, not being properlj^ marine, are in general not included 

 in the report ; but three species, two of them as yet found only on the 

 coast, are included as being commonly found by marine collectors. 

 They are the first three of the following list, which embraces also all the 

 marine Isopoda known to inhabit the waters of New England : 



Pbiloscia vittata Say, Jour. Acad. Nat. Sci. Phil., vol. i, p. 429, 1818. 

 A southern species found as far north as Barnstable, Mass. 



Scyphacella arenicola Sinitli, Eep. U. S. I'ish Com., part i, p. 568 (274), 1874. 



Sandy beaches, from Great Egg Harbor, New Jersey, to Nantucket, 

 Mass. Not yet found north of Cape Cod. 



Actoniscus ellipticus Harger, Am. Jour. Sci., Ill, yoI. xx, p. 373, 1878. 



Shores of Long Island Sound at Savin Eock, and Stony Creek, near 

 New Haven. Collected by Professor Yerrill. 



Cepon distortus Leidy, Jour. Acad. Nat. Sci. Phil., II, vol. iii, p. 150, pi. si, figs. 

 20-32, 1855. 



" Branchial cavity of GelasiTmis piigllator, Atlantic City, New Jersey." 



Gyge Hippolytes Bate and Westwood, Brit. Sess. Crust., vol. 11, p. 230, 18&S.— i>o- 

 2>!irus Hippohjies Kroyer, Gronlauds Amfipoder, p. 306, pi. iv, fig. 22, " 1838." 



Parasitic on Hippolyte, etc., and found as far south as Massachusetts 

 Bay. 



