INDEX 
To all the Generic and Specific Descriptions of Shells of Thomas Say, and to 
the Synonyms used in his writings, with the name, date, volume, page, and 
figure of the original works containing them. 
[ In referring to this volume, all the pages are specified containing any 
notice of each species ; but that on which the full description is given, is 
distinguished by being placed first. 
The italics distinguish what Say considered synonyms in the work re - 
ferred to. 
The genera instituted by Say are followed by his name ; the species 
are all Say’s, unless some other authority is given. The full title of the 
works quoted, will be found in the preface. — Ed.] 
Achatina solida. Sept. 1825, J. A. v. 122 29 
Alasmidonta, Say, Dec. 1818, J. A. i. 459 62 
Alasmodonta, Say, 1819, N. E. 3 ed, Sept. 1831, Am. Con. hi 56, 169 
ambigua, Nov. 1825, J. A. v. 131 118 
complanata, Barnes, Syn. Alasm. 3 22 3 
confragosa, Nov. 4, 1829, N. H. D. ii. 339, Am. Con. Sept. 
1831, hi. pi. 21 131, 171, 195 
costata, Raf. syn. Alasm. 2, 223. 
edentula, Nov. 4, 1829, N. H. D. ii. 340. 1840, Desc. 10. .137 
marginata, Dec. 1818, J. A. i. 459. 1819, N. E. 3 ed. 
Syn. 1 62, 56, 223 
Tugosa, Barnes, Syn. Alasm. 2 225 
sculptilis, Nov. 4, 1829, N. H. D. ii. 339. 1840, Desc. 9... 137 
undulata, 1819, N. E. 3 ed. pi. 3 f. 3 ....62 
Amphidesma, Am. Con. hi 181 
sequalis, July 1822, J. A. ii. 307. Sept. 183»1, Am. Con. 
hi. pi. 28 100, 182 
lepida, Feb. 1826, J. A. v. 221 127 
orbiculata, July 1822, J. A. ii. 307 100 
O punct^l^ata, July 1822, J. A. ii. 308 101 
radiata, Feb. 1826, J. A. v. 220 127 
transversum. Sept. 1831, Am. Con. ih. pi. 28 181 
Ampullaria depressa. Say, 1824, L. E. p. 264, pi. 14, f. 2. v. palu- 
dosa.... 130, 147 
flagellata, Aug. 1829, N. H. D. ii. 260. 1840, Desc. 22....147 
paludosa, Aug. 26, 1829, N. H. D. p. 260. 1840, Desc. 
p. 22 147 
rotundata, Aug. 12 1829, N. H. D. ii. 245. 1840, 
Desc. 21 
147 
