PROOEEDINCS OF UNITED STATES NATIONAL MUSEUM. 161 



Epelys montosus Ilarger, Eei). U. S. Fish Coin., part i, p. 571 ('-'77), 1874. — Idoica 

 monlosa Stirapson, Mar. Invert. Grand Manan, p. 40, 1853. 



Eeplaces the preceding sjiecies for the most i)art at the north, but 

 found also as far soutli as Long Island Sound. It has been obtained 

 from a depth of 40 fathoms. 



Astacilla granulata =Z.eac/iiffl gramdata G. O. Sars, Arch. Math, og Natnrvid. Chris- 

 tiauia, B. ii, p. 351 (proper paging 251), 1877. — Astacilla Americana Harger, 

 Am. Jour. Sci., Ill, vol. xv, p. 374, 1878. 



St. George's Banks, 1877, and Banquereau, 1878. I have seen no 

 specimens of Sars's species for comparison, but his description appears 

 to apply perfectly to the specimens described by myself before seeing 

 his pai^er. 



Sphaeroma quadridentatuin Say, Jotir. Acad. Nat. Sci. Phil., vol. i, p. 400, 1818. 



A southern species, scarcely passing north of Cape Cod, but occurring 

 at Provincetown, Mass. 



Limnoria lignorum ^^Tiite, Pop. Hist. Brit. Crust., p. 227, 1857. — "Cymothoa lignorum 

 Eathke, Skrivt. af Naturh. Selsk. v. 101, t. 3, f. 14, 1799." — Limnoria terebrans 

 Leach, Edinburgh Encyc, vol. vii, j). "433, 1813-14"; Trans. Linn. Soc. Lon- 

 don, vol. xi, p. 371, It5l5. 



This genus was associated with the Asellidce by Edwards without an 

 examination of the specimens, and, so far as I know, he has been followed 

 by recent authors. An examination of its structure appears to point 

 unmistakably to affinity with the Sphxcromidce. I have not, however, 

 thought best to include it in that family, but have jjlaced it in a 

 family by itself, the Limnoriidcc. 



The species extends throughout the New England coast. 



Cirolana concharam. =: Conilera concharvm Harger, Eep. U. S. Fish Com., parti, 

 p. .572 (278), 1874. — A:!ga concharuvi Stimpson, Mar. Invert. Grand Manan, p. 

 42, 1853. 



Not found north of Cape Cod, but abundant at Viueyard Sound. 



Cirolana pdlita = Conilera polita Harger, in Smith and Harger, Trans. Conn. Acad., 

 vol. iii, p. 3, 1S74. — ^ga ])olita Stimpson, Mar. Invert. Grand Manan, p. 41, 

 1853. 



St. George's Banks, Salem, and Eastport (Stimx)son), rare. 



^ga psora Kroyer, Gronlands Amfipoder, p. 318, "1838." — Oniscux pmra Linu6, Syst. 

 Nat., ed. x, torn, i, p. 636, 1758. — JEga emarginoia Leach, Trans. Linn. Soc. 

 London, vol. xi, p. 370, 1818. 



Parasitic on the Cod, Halibut, etc. ; also dredged on St. George's 

 Banks. 



Nerocila munda Harger, Eep. U. S. Fish Com., part i, p. 571 (277), 1874. 

 On dorsal fin of Ceratacanthus aurantiacus, Vineyard Sound. 



ifjgathoa loliginea Harger, Am. Jour. Sci., Ill, vol. xv, p. 376, 1878. 

 ]\Iouth of Squid, New Haven, Conn. 



Proc. Nat. Mus. 79 11 ]Vov. 5, 1 879. 



