INDEX. 
365 
236; in Vaginulus, 237 ; in Helix, 
237. 
Pulmonary chamber, 199, 200, 202. 
Pulmonary orifice in Limax, 235. 
Pulmonary rete, in Limax, 23.3; in 
Helix, 238. 
Pulsations of the heart, 238. 
Pupa, Drap. 97. 114. 124, 163, 165, 
167, 168, 171, 173, 201, 202, 
% 213, 230. 
•armifera, 109, 128, 129, 181. 
bacha, 109, 124, 129. 
contracta, 109, 12S, 129, 140, 
154, 162, 181. 
corticana, 109, 128, 129. 
incana, 109, 119, 12S, 153, 162, 
199 216 230. 
rupicola, 109, 128, 129, 140, 
154, 162. 
modica, 109. 
pontifica, Gould, 109, 12S. 
servihs, Gould, 162. 
variolaria, 128. 
Pupada?, 97. 
Rafinesque (C. S.) notice of, 41 ; his 
works, 48. 
Rang, his definition of Gasteropoda, 
-93 
Rectum, 288. 
Renal organ, 236, 239; in Tebenno- 
phorus, 237 ; in Vaginulus, 237 ; in 
Helix, 238. 
Reproduction of injured parts, 196. 
Respiratory apparatus, 235. 
Retractor muscle, 202, 225. 
Rivers, influence on the range of spe- 
cies, 107, 130 
Salivary glands, 20S, 217 ; of Vaginu- 
lus, 211; in Helix, 212; in Sucei- 
nea, 214 ; in Glandina, 215. 
Say, (Thos. ) his Conchology in 
Nicholson's Encyclopedia, 36 ; his 
life, 39 ; Helices described by, 59. 
Scutibranchiata, Bl. 95, 96. 
Sea, influence of its vicinity on spe- 
cies, 135. 
Sense, organs of, 243. 
Serial arrangements, 88, 9.7. 
Shells, to be studied with the animal, 
69; and at all ages, 71. 
Sight, organ of, 247. 
Silliman's Journal, its contributions, 
35. 
Siphonobranchiata, Bl. 95, 96. 
Smell, sense of, 246 
Species, definition of, 64 ; variations 
of, 65 ; how to be described, 
68. 
on both continents, identity of, 
75. 
Specific names, choice of, 77. 
Spermalheca, 234. 
Spermatozoa, in Helix, 232, 234. 
Slate Surveys, 36. 
Stenostoma, Raf. 49. 
Stenotrema, Raf 49. 
Stomach, 207 ; of Tebennophorus, 
210; of Vaginulus, 210; in Helix, 
211; in Bulimus, 213; in Pupa, 
213; in Succinea, 213. 
Stomato-gaslric ganglion, 241. 
Succinea, 76. 97, 114, 121, 12S, 163, 
165, 167, 168, 171, 196, 201, 
202, 213, 231, 233. 
amphibia, 159. 
aurea, 109, 128, 129. 
avara, 109, 128, 129. 
.campeslris, 109, 121, 128. 
luleola, 109, 128. 
nmnila, 128. 
nuttalliana, 109. 
obliqua, 109, 128, 129, 199. 
ovalis, 109, 128, 129. 
putris, 109, 129, 159, 162. 
rusticana, 109. 
Sub-oesophageal ganglion, 240. 
Supra-ffisophageal ganglion, 239. 
Synonyms, an obstacle, 63. 
of species described by Say, 59. 
Synopsis of genera and species in 
each geographical section, 128. 
Table of Helices described by Say, 
59; of pneumonobranchiate mol- 
lusca, 97; of distribution of species 
in geographical regions, 109; of 
temperature, 110; of genera and 
species in each geographical sec- 
tion, 128; of foreign species ob- 
served in the United States, 159 ; 
of species inhabiting other parts of 
America, 162; of the number of 
species in each genus, 163; of 
terrestrial molluslcs in the United 
States and in Europe, 167 ; of ge- 
nera, compared with those of South 
America and Cuba, 171. 
Taste, sense of, 246. 
Tebennophorus, 53, 97, 1 1 1, 123, 12S, 
163, 165, 167, 168, 171, 173, 
193, 200, 204, 205, 209, 220, 
236. 
carolmensis, 109, 128, 129, 198, 
205. 
Tegumentary covering, 203. 
Temperature, table of, 110 ; vicissi- 
tudes of, 127. 
Tentaeulre, 199 ; structure of, 244 
Terrestrial mollnsks, anatomy of, 198. 
in the United Slates and En- 
rope, comparative table of, 167. 
•68 
