478 The Molluscan Family Planorhidae 



PLATE 121 



Shells of Planorbidae 



1-5. Menetus ccntcrvillcnsk (Tryon). Novo, California. U.S.N .M., 47639. 

 6-8. Menetus ceniervillemis (Tryon). Bear Lake, San Bernardino Mt.s.. California. 

 U.S.N.M., 175089. 



9, 10. Menetus labiatus F. C. Baker. Terminal Island, Los Angeles Co., California. 

 Paratypes. U.S.N. M., 190021. 



11. Menetus labiatus F. C. Baker. Terminal Island, Los Angeles Co., California. 

 Holotype. U.S.N.M., 190021. 



12-18. Menetus portlanclensis F. C. Baker. Tanner Creek, Portland, Oregon. 12, holo- 

 type; 13-18, paratypes. U.S.N.M., 184182. 



19,20. Meyietus cooperi crassilabris F. C. Baker. Seattle, Washington. 20, holotype; 

 19, paratype. U.S.N.M., 214590. 



21. Menetus cooperi crassilabris F. C. Baker. Portland, Oregon. U.S.N. M., 99302. 



22,25. Menetus dilatatus (Gould). Hingham, Massachusetts. Lea coll. Type locality. 

 U.S.N.M., 121002. 



23,27,28. Menetus dilatatus buehanensis (Lea). Cincinnati, Ohio. Lea coll. Types. 

 U.S.N.M., 120948. 



24,30. Menetus dilatatus buehanensis (Lea). Half mile west of Luray, Virginia. Varia- 

 tion toward dUatatus. U.S.N.M., 473961. 



26. Menetus dilatatus (Gould). Medford, Massachusetts. U.S.N.M., 41725. 



29. Menetus dilatatus buchanenMs (Lea). Near Luray, Virginia. Pathologic. U.S.N.M., 

 473961. 



31. Menetus dilatatus buehanensis (Lea). Mt. Pleasant, District of Columbia. 

 U.S.N.M., 227832. 



32,35,36. Menetus dilatatus pennsylvanicus PiLsbry. Three and one-half miles south- 

 west of Cambridge, Maryland. B168. 



33. Menetus dilatatus buehanensis (Lea). Harbert, Berrien Co., Michigan. U.M., 88030. 



34. Menetus alahaniensis (PiLsbry). Woodville, Jackson Co., Alabama. Type locality. 



U.M., 85913. 



37. Menetus alabamensis (Pilsbry). Woodville, Alabama. Part of tyjie lot. B3928. 



38. Menetus alabamensis (Pilsbry). Woodville, Alabama. Type locality. U.M., 85913. 



39. Menetus alabamensis (Pilsbry). Woodville, Alabama. Paratype. U.S.N.M., 129005. 

 40,41. Menetus alabamensis avus (Pilsbry). Hammock near St. Johns River, Florida. 



U.S.N.M., 101698. 

 42-44. Menetus brogniartianus (Lea). Cincinnati, Ohio. Lea coll. 42, lectotype; 43-44, 

 paratypes. U.S.N.M., 120981. 



