396 TERRESTRIAL AIR-BREATHING MOLLUSKS. 



multilineaius. It was not again met with until Dr. Binney received specimens 

 from his collector in Florida. From these shells it was described and figured in 

 the Terrestrial Mollusks. Its identity with Mr. Say's species was there recog- 

 nized, but as B. multilineatus was considered a eynonyme of the West Indian 

 Bulimus virgulalus, 1 our shell was placed under that name. In the fourth vol- 

 ume of the Terrestrial Mollusks I restored to the species the original name 

 of multilineatus. Among European authors the name is mentioned only by 

 Pfeiffer (Mon., II. 204) as a species unknown to him, and later (IV. 482) as a 

 eynonyme of Bui. elongatus. The last quotation was probably influenced by 

 the treatment of the species in the Terrestrial Mollusks, as he also quotes in 

 the same synonymy the description and figure of that work. It appears to me 

 that Dr. Pfeiffer has described the species from specimens from the Orinoco, 

 under the name of Bulimus Menkei. While criticising the plates of the Ter- 

 restrial Mollusks (Mai. Blatt., 1859, p. 29) he notices the resemblance of the 

 upper- figure to Bui. Menkei in color. 



The name Bulimus venosus of Reeve was suggested for the specimens from 

 the banks of the Orinoco, on account of Bulimus Menkeanus of Fe"russac pre- 

 venting the use of the name Bui. Menkei. 



Specimens resembling those from Florida have been received from Vene- 

 zuela by Mr. Swift. There can be no doubt of the species having several times 

 been found in Florida as well as in South America. 



I add below the descriptions of Say and Pfeiffer. 



Bulimics multilineatus. — Shell conic, not very obviously wrinkled ; whorls not 

 very convex, yellowish-white, with transverse entire reddish-brown lines ; a 

 blackish subsutuial revolving line ; suture not deeply indented, lineolar ; apex 

 blackish ; umbilicus small, surrounded by a broad blackish line ; -columella 

 whitish ; labrum simple, blackish. Length less than seven tenths of an inch ; 

 greatest breadth less than seven twentieths of an inch. This species was found 

 by Mr. Titian Peale on the southern part of East Florida. (Say. ) 



Bulimus Menkei. — Shell subperforated, oblong-acute, thin, smooth, white, with 

 three bands (two confluent, one sutural) and streaks of chestnut ; whorls 7, 

 rather convex, the last about equalling two fifths the shell's length ; columella 

 obliquely receding ; aperture oval-oblong ; peristome simple, acute, black, its 

 columellar termination dilated, arcuately reflected, appressed. Length, 21 mill. ; 

 diameter, 9. mill. ; aperture, 9 mill, long, 4^ wide. Near Orinoco, Venezuela. 

 (Pfeiffer.) 



A study of these descriptions will, I believe, convince one of the identity of 

 the Florida and Orinoco shells with Bulimus multilineatus. There can be no 

 doubt that the well-known Bui. elongatus is quite a distinct species. 



Jaw and lingual dentition unknown. 



Genitalia (see Leidy, 1. c.). The penis sac is long, irregularly cylindroid, 



l This is low recognized as a synonynie of B. elongatus, Bolt. 



