366 



INDEX. 



Terrestrial mollusks, comparalive ta- 

 ble of, in tlie United States and 

 South America, 170. 



Testacella, 1G7, 172. 



Te.'^tis, 232 ; of Limax, 217 ; in Te- 

 bennophoriis, 220; in Vaginulus, 

 221 ; in Helix, 223, 232 ; in Suc- 

 cinea,231 ; in Glandina, 231. 



Tissues of the genital organs, 232. 



Touch, organ of, 243. 



Toxotrema, Raf. 49. 



Triodopsis, Raf. 49. 



Trophodon, Raf. 49. 



Turbinated mass, 201. 



Va2:ina, in Helix, 227, in Bulimus, 

 229; in Succinea, 231; in Glan- 

 dina, 232. 



Vaginulus, 97, 124, 128, 163, 165, 

 166, 168, 171, 173, 200, 210, 

 216, 221, 233, 234, 237, 242, 

 246. 

 floridanus, 109, 119, 128, 198. 



Valvata, 181. 



Varieties, from locality, 65. 



Vas deferens, in Limax, 218 ; in Te- 

 bennophorus, 220; in Vaginulus, 

 221; in Helix, 223; in Bulimus, 

 229; in Pupa, 230; in Glandina, 

 231. 



Vegetation, iafliience on species, 113. 



Vertebrate animals, 85. 

 Vertigo, 97, 124, 163, 16-5, 108, 171. 

 decora, 109, 124, 129. 

 gouldii, 109, 124, 129. 

 milium, 109, 128, 129. 

 ovata, 109, 12S, 129, 137. 

 pentodon, 109, 128, 129. 

 Vicissitudes of temperature, inllu- 



ence on species, 127. 

 ViTEXNA, 97, 111, 116, 125, 126, 163, 

 165, 167, 16S, 171, 173. 

 pellucida, 109, 129, 144, 159, 

 162. 

 Xolotrema, Raf. 49. 

 Zoological foci of genera and species, 

 141. 

 sections of country, 117; Flo- 

 rida, 118; tertiary of the At- 

 lantic, 120 ; Southern Inte- 

 rior, 122; Norlhern Interior, 

 123; Northwestern, 124; 

 Northeastern, 125 ; table of 

 species in, 128. 

 Zoology, obstacles to the study of, 

 63 ; neglect of American, by 

 Europeans, 56. 

 of Massachusetts, 3G; of New 

 York, .36 ; in the United 

 States, rise of, 31. 



END OF VOLUME I. 



