16 



AMERICAN JOURNAL 



OPERCULATA. 



Synonymy and Reference to 

 Plate 18. 



Figs 1, 2. Alexia myosotis, Draparnaud. 



W. G. Binney, 1. c. iv., p. 172, t. 75 f. 33, 

 t. 79, f. 16, 1859. 

 Auricula denticulata, Gould, Invert. Mass, 

 p. 199, t. 129, 1841. 



Melampus borealis, Conrad, Am. Jour. Sci- 

 ence, xxiii., p. 345, 1833. No. 1. 



" 3. Caryciiium exiguum, Say. Jour. Acad. Nat. 

 Sciences, ii., p. 375, 1822. 

 Binney, Terr. Moll, ii., p. 286, t. 53, f. 1, 

 1852. 



C. exile, H. C. Lea, Am. Jour. Science, xlii. 

 p. 109, t. 1, f. 5, 1841. 



C. existelium, Bourguignat, Mag. Zool. p. 220, 



1857. 

 C. euphceum, Bourguignat, Mag. Zool. p. 221, 



1857. No. 1. 



MELAMPUS, Montfort. 



4. M. olivaceus, Carpenter. Cat. Reigen Coll 



p. 178, 1857. 



5. M. bidentatus, Say. Jour. Acad. Nat. Sc. 



ii., p. 245, July, 1822. 



W. G. Binnev, 1. c, iv., p. 156, t. 75, f. 23 



1859. 



M. corneas, Stimpson, Shells of New Eng 



land, p. 51, 1851. 

 Auricula cornea, Deshayes, Encyc. Meth., ii 



p. 90, 1830. 



No. 1. 



