EASTERN PROVINCE SOUTHERN REGION SPECIES. 407 



Lingual membrane (Terr. Moll., V, Plate X, Fig. F) with, about 70-1- 

 71) teeth (copied iii Fig. 447), of the form already fig. 447. 



noticed in B. laticinctus, Baliamensis, aurisle^oris, "^V^^Ns 

 'papyracem, Jonasi, memhranaceuH^ &c., but hith- 'v^^VJ <^-\^ 

 eito unnoticed in any Xorth American species. 

 The centrals have a base of attachment longer ^'"^^'ion^ani" "^ 

 than wide, a stout, short, tricuspid reflection, each cusp bearing a dis- 

 tinct cutting point. Laterals with equilateral base of attachment, large, 

 irregularly tricuspid reflection ; the cutting point is extremely wide, 

 oblique, tricuspid, the central division the largest. The marginals 

 differ only in smaller size, more elongated reflection, and instead of the 

 single outer cutting point there are three or four, giving a serrated 

 appearance. The lingual membrane is broad. The figure gives a cen- 

 tral tooth, with two adjacent laterals aud two marginals. 



Genitalia (Terr. Moll., V, Plate XY, Fig. J) without accessory organs. 

 The penis sac is long, cylindrical, tapering into a flagellum above and 

 receiving the vas deferens near its lower termination. The genital 

 bladder is ovate, on a long duct. 



Buliinultis Floridaiius, Pfeiffer. 



Shell narrowly perforated, ovate-elongate, rather smooth, grayish- 

 green, variegated with white, oi)aque streaks and spots ; spire elongate- 

 conic, somewhat acute ; whorls 6i, rather convex, the 



Fig. 448. ' ' -' , ' 



ui^per ones banded with interrupted brown, the last 

 about three-sevenths the length of the shell, subangu- 

 lated below the middle, attenuated at the base; colu- 

 mella somewhat twisted, receding ; aperture slightly 

 oblique, oval ; peristome thin, its right termination 

 B. Fioridanus. jj^rrowly expanded, the columellar termination dihited, 



reflected, hardly touching the shell. Length, 15|-17"""; diameter, 17.V"'". 



Length of aperture, 7i""" ; diameter, 4i'"'". 



BuHmus Fioridanus, Pfeiffer, Proc. Zool. Soc, 1856, 330; Mou. Hel. Viv., iv,406.— 

 W. G. BiNNEY, Terr. Moll., iv, 134, pi. Ixxix, fig. 3 ; L. & Fr.-W. Sh., i, 194, 

 fig. 338 (1869), not of COxXRAD. 



Liostracm Fioridanus, Tryon, Am. Jouru. Conch., iii, 168 (1867). 



BiiUmuhis Fioridanus, W. G. BlXNEY, Terr. Moll., v, 398. 



Florida, in the Florida Subiegion. (Pfeiffer.) 



The specific name must not be confounded wiih that pro])osed by 

 Conrad for a fossil species of Bulimus (Sill. Am. Jour. |'2], II, ;599). 



