942 ZOOLOGY— MOLLUSCA. 



Taken by the expedition in the following localities:- 



No. 



Locality. 



Date. 



Collector. 



(?) 



(?) 

 (?) 



21 



B 

 B I 



Utah Lake, Utah 



July, 1S72 



.... do 



Oct., 1S72 

 Sept., 1S73 

 Oct., 1S73 



....do 



H. W. Henshaw and Dr. H. C. 



Yarrow. 

 Dr. H. C. Yarrow. 



Do. 

 J. Wolf. 



Do. 



Do. 



Ditches near Salt Lake City, Utah 



Panquitch Lake, Utah 





Del Norte, Colo 







LIMNAEA KEFLEX A, Say. 



Limneus reflexus, Say, Jour. Acad. Nat. Sci. Phila., ii, 1821, 1G7. — Id., Am. Conch., iv, 

 1832, pi. xxi, f. 2.— Id., Binney's ed., 65, 1S8, pi. xxxi, f. 2.— Id., Chemnitz's 

 ed., 44, pi. vii, f. 4. — Kusxer, iu Chemnitz, ed. 2. 41, pi. vii, figs. 11, 12. 



Limnma rcflexa, Hald., Mon., 1842, 20, pi. viii.— DeKay, N. Y. Moll., 1843, 71, 

 pi. iv, figs. 65-72.— Binney, Laud & Fresh Water Shells N. A., pt, ii, 1805, 

 39.— Roberts, U. S. Geol. Surv. Terr., 1870, 468. 



Limneus elongatus, Say, Jour. Acad. Nat. Sci. Phila., ii, 1821, 167. — Id., Long's Exped. 

 Rocky Mts., ii, 1823, 263.— Say, Couch., Binney's ed., 65, 130; Chemnitz ed., 

 43, pi. vii. f. 5. 



Limneus umbrosus, Say, Am. Conch., iv, 1832, pi. xxxi, f. 2. — Id., Binney's ed., 187, 

 pi. xxxi, f. 2.— IIald., Mon., 1842, 24, pi. vii.— DeKay, N. Y. Moll., 

 1843, 68, pi. iv, f. 76.— KtiSTER, in Chemnitz, ed. 2, 41, pi. vii, figs. 13-16. 



Limnma exilis, Lea, Trans. Am. Phil. Soc. Phila., v, 1837, 114, pi. xix, f. 82.— Id., Obs. 

 i, 226. — Ktjster [Limnceus), in Chemnitz, ed. 2, 40, pi. vii, f. 9. 



Limnceus palustris var. distortus, Rossmassler, Icon., i, 1835, 97, pi. ii, f. 52. 



Limnophysa rejlexa, Chemnitz, Man. de Conch., ii, 480, f. 3544. 



Observed from northern tier of States, from New York to the Pacific, 

 and in Canada. It extends more to the southward in the western portions 

 of its area, having been found in Kansas, Utah, and Colorado, and in tho 

 Columbia and Sacramento Rivers (Binney). 



Secured by the expedition at the following locality: — 



No. 



• 



Locality. 



Date. 



Collector. 



O 





Oct., 1S73 



Dr. J. T. Rothrock. 



LIMNAEA PALUSTRIS, Miiller. 



Helix palustris, Muller, Syn. Nov. Gen., 1834, p. — . — Rackett, Trans. Linn. Soc, xiii, 

 1822. 42. 



