PULMONATA— LIMNAEIDAE— LIMNAEA PALUSTRIS. 



943 



*Limnceus elodes, Say, Jour. Acad. Nat. Sci. Phila., ii, 1821, 1G9. — Id., Am. Conch., iv, 

 1S32, pi. xxxi, f. 3.— Id., Binney's ed., 06, 188, pi. xxxi, f. 3.— Id., Chemnitz's 

 ed., 44, pi. viii, f. 3. — Kuster, in Chemnitz, ed. 2, 42, pi. vii, figs. 17-21. 



Limncea elodes, Gould, Invert. Mass., 1841, 221, figs. 146, 147. — Adams, Verm. Moll., 

 in Thorn's Hist., 1842, 153.— Anon., Can. Nat., ii, 1857, 199. 



Limncea fragilis (not of Linnaeus), Hald., Mon., 1842, 20, pis. vi-xv, f. 1 ; 53, pi. xiv, 

 f. 1.— DeKay, N. Y. Moll., 1843, 68, pi. iv, f. 68. 



Limncea palmtris, Muller (Buccinum), &c. — Sheppaed, Trans. Lit. Hist. Soc. Quebec, 

 i, 1829, 196.— BlNNEY, Laud & Fresh Water Shells N. A., pt. ii, 1805, 45.— 

 Kobeets, U. S. Geol. Surv. Terr., 1870, 408. 



Limncea nuttaliana, Lea, Proc. Acad. Nat. Sci. Phila., ii, 1841, 33. — Id., Trans. Am. 

 Phil. Soc. Phila., ix, 1844, 9. — Id., Obs., ii, 9. — Kuster (Limnceus), in Chem- 

 nitz, ed. 2, 38, pi. vii, f. 5. 



Limncea plebeia, Gould (?). 



Limncea expansa, Hald., Mou., 1842, 29, pi. ix, figs. 6-8. — Id., Suppl. to pt. i, 1840, 

 3. — DeKay, N. Y. Moll., 1843, 75, pi. xxxvi, f. 348. — Kuster (Limnceus), 

 in Chemnitz, ed. 2, 39, pi. vii, figs. 6, 7. 



Ranging from New England through Pennsylvania and Kansas to Cali- 

 fornia and Oregon. Very numerous in British America (Binney). No 

 living specimens found in Utah ; very abundant on the mud flats of the 

 Sevier, and at Panquitch Lake, with Planorbis trivolvis. 



Found in following localities : — 



No. 



(?) 

 (?) 

 (?) 

 (?) 



2 A 



4 

 A 

 i 7 A 



N i 



22 



Locality. 



Mud flats, near Sink of Sevier River, Utah. . 



Shores of Sevier Lake, Utah 



Panquitch Lake, Utah 



Southern Utah 



Georgetown, Colo. 



do 



South Park, Colo . 

 Twin Lakes, Colo. 



do 



Saguache, Colo . .. 

 Loma, Colo 



Date. 



Sept., 1872 



.... do 



Oct., 1872 

 .... do 



June, 1S73 



.... do 



July 1873 

 Aug., 1873 



....do 



Sept., 1873 

 .... do 



Collector. 



Dr. II. C. Yarrow. 



G. K. Gilbert. 



Dr. H. C. Yarrow. 



Dr. H. C. Yarrow and H. 



Henshaw. 

 Dr. J. T. Rothrock. 



Do. 

 J. Wolf. 



Do. 



Do. 



Do. 



Do. 



* Probably future researches will replace elodes. 



tDr. Lewis states that "excellent reasons exist why Limnceus elodes should be retained. Iu all 

 probability, our shell is distinct. I am sure that cataseopium gives birth to elodes by proper change of 

 station. The European pereger is by no means identical with cataseopium, though it may be presumed to 

 stand iu the same relation to the European palusiris that cataseopium does to the American elodes." 



