406 A MANUAL OF AMERICAN LAND SHELLS. 



ous teeth, arranged en chevron ; teeth as described by me for Buli- 

 mulus Dormant. Two margiual teeth are here figured. 



Genitalia (see Leidj^, I. c): The penis sac is long, irregularly cylin- 

 droid, and has its base inclosed in a short prepuce ; the vas deferens 

 terminates in and the retractor muscle is inserted into its summit ; 

 the genital bladder is oval, its duct is not more than one-third the 

 length of the oviduct and dilates as it passes downwards. 



Biiliniiiltis Doriiiaiii, W. G. Binney. 



Shell perforated, thin, transparent, shining, elongated-conic, of a 

 Fig. 446 yG^rj light waxen color, with several regular revolving series 

 of interrupted, perpendicular, reddish-brown j^atches; su- 

 ture distinctly marked ^ apex j^unctured; whorls G, rather 

 convex, marked with numerous very fine revolving lines; 

 upper whorls striate, last whorl full, with a hardly' percep- 

 tible obtuse carina at the upper extremity of the i^eristome 

 Length, 29""^ ; diameter, 12'"™. 



B.Dormani. ^,,;-,,j„g Dormani, W. G. BiNNEY, Proc. Acad. Nat. Sci. Philacl.^ 1857, 

 188; Terr. Moll., iv, 132, pi. Ixxx, fig. 10; L. it. Fr.-W. Sh., i.— Pfeiffek, 

 Mai. Bliitt., 1859, 45. 



Liostraciis Dormairi, Tryon, Aiu. Journ. Conch., iii, 109 (1867;. 



Bidimtthiii Dormani, W. G. Binxp:y,. Terr. Moll., v, 397. 



Florida Subregion. Pound at several points, among them Hanson's, 

 near Saint Augustine, Florida, by O. M. Dorinau ; also at General Her- 

 nandez's plantation on the Matanzas Eiver ; Port Orange, Halifax 

 Eiver ; from between Cedar Keys and Suwanee ; Oak Hill. 



Judging from the description and figure given by Reeve, BuUmus 

 maculatus, Lea, of Carthagena, New Granada, must be nearly related 

 to this species. 



The original specimen from which my former description was drawn 

 was thickened and of a chalky white, probably having been burned. 

 I have since received from various quarters fresh specimens, wliich are 

 very thin and of a waxen hue and with a much more flaring aperture. 



Animal of a dirty white; mantle banded as the shell. Usually 

 found adhering to the under side of the leaves of palmetto, high above 

 the ground. 



Jaw as usual in the subgenus, tliin, transparent, slightly arcuate, 

 wide, ends atteiniated, blunt; anterior surface with about 54 distant, 

 plait-like ribs, those of the upper median portion decidedly converging. 



