EASTERN PROVINCE — SOUTHERN REGION SPECIES. 403 



Biilaniiilus sei-per^strus, Say. 



Sbell elongate, ovate, even fusiform, thin, with delicate lines of in- 

 crement, yellowish-white, witli about unequal, interrupted, Fk;. 442. 

 sometimes coalescent, bluish -black bands on the large whorl, 

 three of which are continued on the upper wlioi Is; whorls 

 or 7, sligiitlj' convex, with a fine, well-marked suture; a[)er- 

 ture less than half the length of the shell, lunate, one-half 

 longer than wide, rather acute at base; peristome sharp, ex- 

 panded, its columellar portion widening upwards and pro- 

 tecting a moderate-sized umbilical opening; columellar mar- 



Biilimvlus 



gin straiglit ; the bands of the exterior reappear, in still serperastms. 

 deeper colors, in the fauces, but terminate at some distance short of 

 the peristome which is white or tinted more or less rose-color. Lengtli, 

 31"""; diameter, 13"'"^; aperture, 15'"™ long, 8 wide. 



liiilniiiis serp(rastrus, Say, New Harmony Diss., Dec. 30, 1830; Bixney's ed., 39. — 

 Pfeiffer, Mou. Hel. Viv., ii, 102; iii, 341 ; in Chemnitz, ed. 2, 82, pi. xxx, 

 fig. 122; pi. xxxix, fig. .5 (1854).— Philippi, Icon., iii, 23, p. 43, tab. ix, fig. 6 

 (leoO).— Reeve, Cou. Icon., No. 252.— Binney, Terr. Moll., ii, 274, pi. 1, fig. 

 2.— W. G. BixxEY, Terr. Moll., iv, 126; L. & Fr.-W. Sli., i, 192 (1869). 



Bidimns Liehmfunii, Pfeiffer, Mon. Hel. Viv.. ii, 106. 



Htilimiis Zkhmaiini, Reeve, Con. Icon., 50fi. 



BiiliniKS iiilcUnns, Reeve, Con. Icon., 398. 



T)riiw(vus scrpa-astnif^, Tryon, Am. Journ. Conch., iii, 167 (1867). 



BuUnudns scrpcra>itrus, W. G. Binxey, Terr. Moll., v, 394. 



This species belongs more to the fauna of Mexico and Central 

 America than to that of the United States, but is admitted here be- 

 cause it has actually been found in Texas. It cannot, however, be 

 considered a species of the Texan iSubregion. 



More slender and elongated individuals have been described under- 

 the names of B. Liehmanni and Ziehmanni. The former name is with- 

 drawn in the third volume of Pfeifler's Monograph. An imperfect 

 sm. Her specimen is described as nifeUrms. I do not agree with Dr. 

 Gould in also placing B. Ulacinus, Eve., in tbe synonymy. 



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

 335 of L. & Fr.-W. Shells, I, is copied from a drawing hy Mrs. Say, 

 under which is written, in Mr. Say's handwriting, ^^ Bulimus serjyeras- 

 Irus, 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. 



