Ol- CONCHOLOGY. 25 T 



L. plica, Lea. — Philos. Proc, vol. ii,, p. 33. 1841. 



Am. Philos. Trans., vol. ix., p. 10. Observ., vol. iv., p. 

 10. 1844. 



L. parva^ Lea. — Philos. Proc, vol. ii., p. 33. 1841. 



Am. Philos. Trans., vol. ix.. p. 11. Observ., vol. iv., p. 11. 

 1844. 



L. curta, Lea. — Philos. Proc, vol. ii., p. 33. 1841. 



Am. Philos. Trans., vol. ix., p. 11. Observ., vol. iv., p. 11. 

 1844. 



Habitat. — Maine to South Carolina, and westward to Wis- 

 consin. Oakland, Cal., (Coll. Tryon.) 



46. L. FERRUGINEA, Haldeman. 



L. ferruginea, Haldeman, Monog. of Limniades, Part 3, p. 

 3 of cover. 1841. 

 Haldeman, Monog. of Limniades, Part 5, p. 49, t. 13, f. 



19—20. 1842. 

 DeKay, Moll. K Y., p. 75. 1843. 



Habitat. — Oregon, (Hald.) 



47. Leptolimn^a attenuata, Say. 



L. attenuata, Say. — New Harmony Disseminator, vol. ii., p. 

 244. 1829. 

 Binney's Edit., p. 148. 1858. 



Haldeman, Monog. of Limniades, p. 28, t. 9, f. 1, 5. 1842. 

 DeKay, Moll. N. Y., p. 75. 1843. 



Habitat. — Mexico, (Say.) 



48. L. KiRTLANDIANA, Lea. 



L. Kirtlandiana, Lea. — Philos. l*roc., vol. ii., p. 33. 1841. 

 Am. Philos. Trans., vol. ix., p. 12. Observ., iv., p. 12. 

 1844. 

 Habitat. — Ohio, (Lea.) 



•1^ '1^ "F •I' 'P 'F 



49. ACELLA GRACILIS, Jay. 



Limnsea gracilis, Jay. — Catalogue of Shells, 3d Edit., p. 

 112, t. 1, f. 10, 11. 1839. 

 Adams, Moll. Middlebury, Vt. 1841. 



Am. Jour. Sci., vol. xl., p. 267. 1841. 

 Fresh Water and Land Shells of Vermont, p. 3. 

 1842. 

 Haldeman, Monog. of Limniades, Part 5, p. 50, t. 13, f. 



21. 1842. 

 DeKay, Moll. K Y., p. 70, t. 4, f. 73. 1843. 

 Habitat. — Vermont to Michigan. 



