BULIMULUS. 395 



to that of the United States, but is admitted here because it has actually been 

 found in Texas. It cannot, however, be considered a species of the Texan 

 Subregion. 



More slender and elongated individuals have been described under the 

 names of B. Liebmani and Ziebmanni. The former name is withdrawn in the 

 third volume of Pfeiffer's Monograph. An imperfect smaller specimen is de- 

 scribed as nitelinus. I do not agree with Dr. Gould in also placing B. lilacinus, 

 Rve., in the synonymy. 



The specimen figured above is from Dr. Binney's collection. Fig. 835 of 

 L. & Fr.-W. Shells, I., is copied from a drawing by Mrs. Say, under which is writ- 

 ten in Mr. Say's handwriting, " Bulimus serperastrus, Mexico, Mr. McClure." 

 This places the identity of the species beyond any doubt. 



In the collection of Mr. Bland is a uniformly white specimen. 



Animal not observed. 



Bulimulus multilineatus, Say. 



Vol. III. PI. LVIII. 



Shell subperforate, thin and strong, elongated, ovate-acuminate, smooth and 

 shining, of a bright yellowish-white color, variegated with longitudinal stripes 

 and spiral zones of dark chestnut, of various widths, none of which are constant, 

 except a subsutural line, continued to the apex, which is also black ; whorls 

 about 7, a little convex ; suture delicate ; aperture rounded-ovate, a little more 

 than one third the length of the shell ; peristome acute ; columella straight, 

 widening upwards, and protecting a minute umbilical opening. Length, 25 

 mill.; diameter, 10 mill. 



Bulimus multilineatus, Say, Journ. Acad. Nat. Sci. Phila., V. 120 (1825) ; ed 

 Binnky, 28. — DeKay, N. Y. Moll., 56 (1843). — W. G. Binney, Terr. Moll., 

 IV. 132 ; L. & Fr.-W. Sh., I. 197 (1869). — Pfeiffer, Mon. Hel. Viv., II. 

 204. 



Bulimus Menkei, Gruner, Wiegm. Archiv., 1841, I. 277, PI. XI. Fig. 2. — 

 Pfeiffer, Mon. Hel. Viv., II. 176. 



Bulimus venosus, Reeve, Con. Icon., PL XLV. Fig. 285 (1848). 



Bulimus virgulatus, Binney, not Ferussac, Terr. Moll., II. 278, PI. LVIII. — 

 Leidy, T. M. U. S., I. 259, PL XV. Figs. 7-8 (1851), anat. — Pfeiffer, 

 1. c, IV. 



Mesembrinus multilineatus, Tryon, Am. Journ. Conch., III. 169 (1867). 



Key West and Lower Matacumba Key, in the Florida Subregion ; St. 

 Martha, Magdalena, and Bambo Bay, New Grenada ; Maracaibo and Porto 

 Cabello, Venezuela (cabinet of Mr. Swift). It evidently belongs to the fauna of 

 New Grenada, and it is difficult to account for its presence in ihe Florida Sub- 

 region. (See p. 37.) 



There is considerable confusion regarding the synonymy of this shell. An 

 immature specimen from Florida was first described by Mr. Say as Bulimus 



