268 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM [18S5. 



Helix (Triodopsis) iuflecta Say. 



Etlix iiijiocia Say (IS21), Biuuey.l. c, p. 306. {Trlodopsie.) 

 ? Belix riKjeli Shuttle worth, 1852. 



Habitat — Interior region, Texas to New York, sea islands of Georgia 

 to tbe Nortliw esteru States, Binuey ; Florida, Bland, in Stearns's coll. 



The three specimens received from Mr. Bland vary from 0.85 to 

 0.12'"™ in maximum diameter, also in elevation and aperture. One 

 has the tootli deej), as in H. rugeli ; one medium ; the third as in Biu- 

 ney's figure of injiecta. Not previously reported from Florida. 



Helix (Triodopsis) vultuosa Gould. 



Helix vulluosa Gld. (1848), Binney, 1. c, p. 312. 



Habitat. — Arkansas and Texas, Binney ; Florida, at Pensacola, 

 Wetherby. 



Not previously reported from Florida. 



Helix (Triodopsis) Hopetouensis Shuttle worth. 



Helix Hopetouensis Shuttlew. (18.^)2), Binuey, 1. c, p. 311. 



Habitat. — South Carolina to Fort George, Saint John's Eiver, Flor- 

 ida, Binney ; Fernandiua and Cedar Keys, IIemj)hill. 



Helx (Mesodon) jejuna Say. 



Hd'ix jejuna Say (1821), Binuey, 1. c, p. 1.51. 



Habitat. — Tampa, Hemphill ; East Florida, Binney. 



This seems, on the whole, distinguishable from Mobiliana, which is 

 also reported by Jewett from Jacksonville. 



Helix (Microphysa) vortex Pfr. 



Helix vortex Pfr. (183'J), Biuney, 1. c, p. 171. 

 Helix selenina Gould, 1848. 



Habitat. — Southern Florida, Biuney; Marco, Fla., Hemphill; said to 

 be viviparous, a fact worthy of verification. 



Guppya gundlachi (Pfr.), Tate. 



Helix gundlachiFir., Wiegia. Arch., 1840, 1, p. 250. 

 Helix pus'illa Pfr., 1, c., 1839 ; uot of Lowe. 

 Conulus gundlachi Tryon, Am. J. Couch., 1866, ii, p. 256. 

 Guppya gundlachi Tate, Am. J. Conch., v, p. 155, 1870. 



Zonites gundlachi (Pfr.) Binney, Bull. M. Comp. Zool., iv, p. 127, pi. xxii A, fig. 

 3, 1878. 



Habitat. — Antilles (Cuba, Guadalupe, &c.); Nicaragua; Florida 

 Keys ; Archer, Alachua County, Florida. 



This remarkable little shell looks like a rather rude specimen of Con- 

 iilus chersina Say, with inflated dome-like whorls and a well defined per- 

 forate umbilicus. It lives in moss on trees and dead stumps (of hard, 

 not resinous, wood), is viviparous, has the tip of the tail subtruucate 

 with a large mucus pore and above the latter a projecting point of in- 

 tegument. The external features of the soft parts have been described 

 by Tate; the dentition has been shown by Binney td resemble that of 



