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Fig. 2. M. BUCCULBXTA, Gould. Proc. Bost. Soc. Nat. 

 Hist., iii., p. 40, June, 1848. 

 Binney, 1. c. iii., p. 9, t. 11, a. b, 1857. 

 H. rufa, DeKay. Moll. N. York, p. 44, t. 3, f. 

 30, a. b, 1843. 

 Mitchener, Am. Jour. Conch., ii., p. 53, Jan., 



1866. No. 6. 



" 3. M. DEVIA, Gould, Proc. Bust. Soc. Nat. Hist. * 

 ii., p. 165, Aug. 1846. 

 Mollusca of Wilkes' Expl. Exped., p. 69, f. 



74, 1852. 

 Binney, Terr. Moll., iii., p. 11, 1857. 

 ff. JBaskervillei, Pfeiffer. Proc. Zool. Soc, 1849. No. 7. 



" 4. M. RoEMERi, Pfeiffer. Roemer's Texas, p. 455. 

 Pfeiffer, Zeitschrift flir Malakol., p. 117, 1848. 

 W. G. Binney, 1. c, p. 55, t. 77, f. 3, 1859. 

 II. dentifera, Pfeiffer. Monog. Hel. vivent., iii., 

 p. 269, 1853. 

 Cbemnitz, Conchyl. Cab., ii., p. 331, t. 131, 



f. 1-3. No. 8. 



" 5. M. MAJOR, Binney. Bost. Jour. Nat. Hist., i., 

 p. 473, t. 12, May, 1837. 

 Binney, Terr. Mollusks, ii., p. 96, t. 1, 1851. 

 W. G. Binney, 1. c, p. 43, 1857. 

 H. albolabris, Ferussac. Hist, des Moll., t. 43, 

 f. 4, t. 46a, f. 7. ^ 

 Bland, Annals N. Y. L*yc. Nat. Hist., vi., p. 



359, Sept., 1858. No. 9. 



" 6, 7. M. TowNSENDiANA, Lea. .Trans, Am. Philos. 



Soc, vi., p. 99, t. 2.3, f. 80, 1839. 

 Binney, Bost. Journ. Nat. Hist., iii., p. 371, 



t. 13, July, 1840. 

 Binney, Terr. Moll., ii., p. 161, t. 19, 1851. 

 Gould, Moll. Wilkes' Expl. Exped., p. 67, f. 



36, 1852. 

 Newcomb, Am. Jour. Conchology, p. 343, 



1865. No. 15. 



" 8. M. MULTILINEATA, Say. Jour. Acad. Nat. 

 Sciences, ii., p. 150, Jan., 1821. 

 Binney, Bost. Journ. Nat. Hist., i., p. 480, t. 



14, May, 1837. 

 Binney, Terr. Moll., ii., p. 103, t. 3, 1851. 

 W. G.' Binney, 1. c, p. 45, 1859. No. 14. 



