. Bulletin - United States National Museum. Science. 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
. Bulletin - United States National Museum. Science. 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, ;'". Length of aperture,
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