104 LAND AND FRESH-WATEU SHELLS STEARNS. 



Physa oBCiilaus Haiti. 



Arizona, Devil's River (Mils. No. 118395j, William Lloyd ; Del Rio, Rio Grande Valley 

 (Mas. No. 118375), Vernon Bailey. 



Older PROSOBRANCHIATA. 

 Suborder Pectenibranchiata. 



Section T^nioglossa. 

 Fluininicola niittalliana Lea. 

 Idaho, Salmon River, near Challis (Mus. No. 1-20352), Merriam & Bailey. 



Suborder Scutibbanchiata. 



Section Rhipidoglossa. 



Helicina orbiculata Say. 



Painted Cave, month of the Pecos River, Texas, William Lloyd. Two specimens 

 (Mas. No. 118389). 



The extensive series in the national collection indicates the wide dis- 

 tribution of this species. From the northerly line of Indian Territory 

 (0. T. Simpson) and midtlle Tennessee it extends through Arkansas and 

 Texas, Mississippi and Louisiana, to the shores of the Gulf of Mexico 

 at Galveston, Indianola, and elsewhere; also as far south as Tamaulipas, 

 in Mexico; in Georgia, on the Atlantic coast; thence southward to 

 Florida, where it has been detected bv mvself and others at various 

 places. I found it under a cedar log between Tampa City and Rocky 

 Point in February, 18G9. 



Class PELECYPODA. 



Order TETRABRA:NCH1A. 



Suborder Submytilacea. 



Unio coloradoensis Lea. 



Mouth of the Pecos River, a single right valve of a half-grown individual. William 

 Lloyd. 



Unio tampicoensis Lea. 



Mouth of the Rio Pecos, two left valves, adult, were obtained by Mr. Lloyd. 



Unio Popei Lea. 



Devil's River, Texas (Mus. No. 118394) ; also Rio Salado, near Leon, Mexico (Mus. No. 

 120920), William Lloyd. 



A fresh specimen of this rare species was found as above by Mr. Lloyd. 

 The late Dr. Lea described it from specimens collected by Berlandier in 

 the Devil's River several years ago, and the Lea collection in the National 



