524 SUCCINEA §. 5. 



drantes 3 longitiuliiiis adacciuans; coluniella arcuaia, pcrspicuu 

 plicata. — Long. '/. , diam. '/j poll. (G. ) 



Succinea rusticana Gould 1846. Exped. shclls p. 31. 

 Habitat Oregon, 



36. S. aperta Lea. 'f 



T. subrotunda, lenuis, flavcscens, laevis; spira brevissima ; 

 anfr. 2, ultimus grandissimus; aperlura lalissima. — Diam. U.'i, 

 long. 0,5 poll. (L.) — Long. 13, diam. 9Vo mill. Ap. \\)'z mill 

 longa, medio 8'/2 lata. (ex ic.) 



Succinea aperta Lea obs. IL p. 1 OL t. 23. f. 107. 

 Habitat ad fluvium Columbia-Rivcr. 



Obs. Persimilis S. depiessae Rang Nr. 66. 



37. S. campestris Say. 



T. ovata, perfragilis, pallide flava, lineis opacis albis et vi- 

 treis irregulariter alternantibus; anfr. 3 vix obliqui. — Lons;. vix 

 /5, lat. /20 poll. (Say.) — Coll. Nr. 8? 



Succinea campestris Say in Journ. acad. Philad. I. P. 1. p. 28 I. 



— — Beck ind. p. 98. N. 3. 



— — GowWreport p. 195. f. 126. ') 



— — Pfr. Symb. IL p. 56. 



Helix campestris (Cochlohydra) Fer. pr. 12. Hist. i. 1 1. f. 12. 

 Habitat in America boreali: Massachusetts. 



Obs. «Affinis S. ovaii Say; differt testa magis robusta; miiius elongala, 

 crassiore, minus fragili, sulura multo minus obliqua.» (Say.) — «Anfraolus re- 

 gulariler inflati; aperlura magis ovalis , quam in S. ovaii, superue et infcrne 

 fere regulariter rotundata.» (Gouid.) 



38. S. ovalis Say. 



T. subovata , pallide flava , diaphana , pertcnuis ct fragilis , 

 anfr. fere 3 obliqui, ultimus amplissimus; spira parvula, promi- 

 nula, obtusiuscula; apcrtura longitudinaliter subovalis, lafa; colu- 

 mella valde angustata, ita ut a basi testae fere in apicem per- 

 splcere possis; callus columellae fere nullus. (Say.) — Long. y^o, 

 lat. %„, long. apert. '/20 poll. Diverg. 56". (Gould.) — Coll. Nr. 9? 

 Sticcinea ovalis Say in Nicliols. Encycl. 



— — Say in Philad. journ. L p. 15. 



— — Desh. Enc. nieth. IL p. 20. N. 2. 



— — Beck ind. p. 98. N. 1. 



*)T. ovata, lenuis, diapliana . pallidc lla\a; anlV. 3 liaud valde oblicpii 

 perconvexi, ullimus amplissimus , turgidus; sulura profunda; aperlura subov;i 

 lis. — Long. %, lal. '''/5 poll. Diverg. 80— yo". (Gould I. c. ) 



