BULIMUS. 129 



must therefore leave the species temporarily under this 

 name, until its position is more accurately ascertained. 



BULIMUS SCHIEDEANUS Pfeiffer. 

 Plate LXXX. Figures 8, 15. 

 T. perforata, ovato-acuta, calcarea, alba, longitudinaliter et irregulariter 

 rugoso-striata ; aufr. 6^ convexiusculi, ultiinus spiram sequans ; apertura 

 ovali-oblonga, intus fulvida ; columella obsolete plicata ; perist. simplex, 

 acutum, marginibus callo nitido junctis, columellari late reflexo, nitido, 

 albo. Long. 31, diam. 17 mill. Ap. 17 mill, longa, 9 lata. (Pfr.) 



SYNONYMS AND REFERENCES. 



B. Schiedeanus Pfeiffer, Symb. ad Hel. Hist. i. 43 ; Mon. Hel. Viv. ii. 187 ; iii. 

 418. 

 Chemnitz, ed. 2, No. 216, pi. xlvi. figs. 3, 4, (1854). 

 Philippi, Icon. i. 3, p. 56, pi. 1, fig. 12. 

 Reeve, Con. Icon. No. 361 



Geographical Distribution. Texas and Mexico. 



Remarks. This species is readily distinguished from 

 that figured on pi. 51, b, (see last article,) by its rougher 

 surface and the want of the tooth-like fold on the colu- 

 mellar. 



Pfeiffer mentions a smaller variety. I have figured two 

 others. One (pi. 80, fig. 15) has a very dark-colored aper- 

 ture. The other (pi. 88, fig. 8) is distinguished by a 

 smoother surface, a black apex, a light coflfee-color below 

 an obtuse carina situated about the middle of the body 

 whorl, the remainder of the shell being quite white. It 

 was found in Washington and De Witt Counties, Texas, 

 (Moore). The other forms were not found with it. It 

 occurred in large numbers, living, and constant in its char- 

 acters through every stage of growth. Should it prove a 

 distinct species, I would suggest its bearing the name of 

 the discoverer. 



BULIMUS PATRIARCHA. 



Plate LXXX. Figure 13. 



T. perforata, ovato, solidissima, alba, rugosa ; anfr. 6 convexi, ultimus 

 17 



