[ xxviii. ] 



Fig. 27, 28, 29. D. Hazardi, Bland, Ann. N. Y. Lye. 

 Nat. Hist., vi., p. 291, Feb., 1858. 

 W. G. Binnej, 1. c. iv., p. 84, t. 78, f. 13, 

 1859. 



IT. plieata, Say, (preoccupied.) Jour. Acad. 



Nat. Sci., ii., p. 161, 1821.' 

 S. fatigiata^ Binney, Bost. Jour. N. Hist., 



iii., p. 388, part, (excl. syn. and t. 619, f. 



3,) 1840. 

 Binney, Terr. Moll., ii., p. 193, (part, excl., 



pi. 39, f. 2,) 1851. 

 ' H. Texasiana, Pfr., Monog. Hel., i., p. 418, 



(excl. desc. et syn.,) 1848. 

 IT. Dorfeuilliana, Deshayes, Ferussac's Hist. 



Nat. i., p. 73, (excl. desc. syn. and fig.) No. 18. 



POLYGYRA. 



*' 30, 37. P. Febigerii, Bland. American ' Jour, 

 of Conchology, ii., p. 373, t. 21, f. 10, 

 1866. 



P^DALOCHILA. 



" .32, 33, 34. D. Jacksoni, Bland. American Jour. 



of Conchology, ii., p. 371, t. 21, f. 8, 1866., No. 15 



" 35, 39. D. VENTROSULA, Pfeiffer. Proc. Zool. 

 Soc, p. 131, 1845. 

 W. G. Binney, 1. c. iv., p. 72, t. 77, f. 14, 



1859. No. 6. 



" 40, 41, 43. D. Behrii, Gabb. American Jour, of 

 Conchology, i., p. 208, t. 19, f. 5—9, 

 1865. No. 10. 



" 42. D. HiPPOCREPis, Pfeiffer. Roemer's Texas, p. 

 455, 1849. 

 W'. G. Binney, Terr. Moll., iv., p. 77, t. 78, 



f. 19, 1859. No. 19. 



