43 
Helix Porcina — Say. Long’s Exp., vol. ii., p. 257, - - - SO 
Profunda — Say. Jour. Acad., vol. ii.,p. 159; Am. Conch. 
No. 4, 20, 36 
Solitaria — Say. Jour. Acad., vol. ii., p. 157, - - - 19 
Suppressa — Say. New Harm. Dis., vol. ii.,p. 229, July, 1829 36 
Thyroidus — Say, Nich. Enc., vol, iv.; Jour. Acad., vol. 
i., p. 123 ; Long’s Exp., vol. ii., p. 258 ; Am. Conch,, 
No. 2, 7, 9, 21, 31, 33 
Tridentata — Say. Nich. Enc., vol. iv,, pi. 2, fig. 1,-6 
Melampus Obliquus — Say. Jour. Acad., vol. ii., p. 377, - - 27 
Oligtra Orbiculata — Say. Nich. Enc., vol. iv.; Jour. Acad., vol, 
i., p. 283, 7, 14 
PoLTGTRA Auriculata — Say. Nich. Enc., vol. iv.; Jour. Acad., 
vol. i., p. 277, - - 7, 10 
Avara — Say. Nich, Enc., vol. iv.; Jour. Acad., vol. i., 
p. 277, - - - . - - - - 7, 11 
Fatigiata — Say. New Harm. Dis., vol. ii., p. 229, July, 
1829, 37 
Plicata — Say. Jour. Acad., vol. ii., p. 161, - - 21 
Septemvolva — Say. Nich. Enc., vol. iv.. Jour. Acad,, 
vol. i., p. 278, 7, 11 
Polyphemus Gians — Say. Nich. Enc., vol. iv.. Jour. Acad., vol. 
i., p. 282, - - - - - - - 7,13 
Pupa Armifera — Say. Jour. Acad., vol. ii., p. 162, - - - 21 
Contracts — Say. Jour. Acad., vol. ii., p. 374 - - - 25 
Corticaria — Say. Nich. Encycl., iv., pi. 4, fig. 5, - - 7 
Exiqua — Say. Jour. Acad., vol. ii., p. 375, - - - 26 
Fallax — Say. Jour. Acad., vol. v., p. 121, - - - 28 
Modesta — Say. Long’s Exp., vol. ii. p. 259, - - - 32 
Placida — Say. New Harm. Dis., vol. ii., p. 230, anno, July, 
1829, 39 
Kupicola — Say. Jour. Acad., vol. ii., p. 163, - - - 22 
SucciNEA Avara — Say. Long’s Exp., vol, ii., p. 260, - - 32 
Campestris — Say. Nich. Enc., vol. iv.; Jour, Acad., 
vol. i., p. 281, 7, 12 
Obliqua — Say. Long’s Exp., vol. ii., p. 260, - - 32 
