[ xvii. ] 



HELICID^. 



Synonymy and Reference to 

 Plate 7. . 



VALLONIA. 



Fig. 1. V. PULCHELLA, Muller. Hist. Vermium. No. 

 322, 1774. 



*' 2. V. MINUTA, Say. Journalof Academy of Nat. 



Sciences, i., p. 123, Oct., 1817. 

 Dekay, Nat. Hist. N. York, Mollusca, p. 40, 



t. 3, f. 33, a. b. 1843. 

 Stimpson, Shells of New England, p. 54, 1851. 

 Morse, Portland Journal of Natural History, 



i. pt. 1, 1864. 

 H. pulchella, Mliller. Binney, Terr. MoUusks, 



ii., p. 175, t. 17, f. 1, 1851. 

 W. G. Binney, Terr. MoUusks, iv., p. 69, 



1859. No. 1. 



ULOSTOMA. 



" 3. U. PROFUNDA, Say. Jour. Acad. Nat. Sciences, 

 ii., p. 160, 1821. 

 Say, American Conchology, pi. 37, f. 3, Mar., 



1832. 

 Binney, loc. cit., p. 177, t. 22, 1851. 

 W. G. Binney, 1. c, p. 70, 1859. 

 II. Michardi, Ferussac. Hist, des Moll., t. 70. 

 Lamarck, Anim. Sans. Vert., vi., p. 72, Apr., 



1822. No. 1. 



" 4. U. Sayi, Binney. Bost. Jour. Nat. Hist., iii., 

 p. 579, t. 16, July, 1840. ' 

 Binney, Terr. MoUusks, ii., p. 180, t. 23; 1851. 

 W. G. Binney, 1. c, p. 70, 1859. 

 ff. diodonta* Say. St. Peters' Exped., ii., p. 



257, t. 15, f. 4, 1824. No. 2. 



* Preoccupied by Muhlfeldt, 1817, 



