154 BULLETIN OF THE 



Triodopsis Levettei, Blakd. (p. 314.) 



Plate I. Fig. E. 



Shell umbilicato, orbiculate-convcx, thin, shining, translucent, slightly and 

 irregulaily obli([uely striated, chestnut-colored, the upper whorls paler ; spire 

 scarcely elevated, apex obttise ; suture inijiressed ; whons 7, rather convex, 

 gradually increasing ; the last somewhat depressed at the aperture, obsok-tely 

 spirally striated, constricted behind the aperture, and slightly scrobiculatcd, 

 base sul:)convex ; umbilicus moderate, ^ diameter of the shell, pervious ; 

 aperture very oblif[ue, subcircular, with a well-developed flexuose, transverse 

 white tooth on the parietal wall ; peristome reflected, pale chestnut-colored, 

 thickened within, lliu margins joined by a slight callus, the right margin wilh 

 a white, obtuse, erect, submarginal tooth, the basal margin with two white 

 transverse teeth, the upper one the larger. 



Trioclojisis Levettei, Bland, Ann. N. Y. Acad. Sci., Vol. II. No. 4, p. IIG, Fig. 

 (1880). 



Near Santa Fe, New Mexico, where two living and one dead specimen were 

 collected by my friend. Dr. G. M. Levette, who presented to me one of the 

 former. Cabinet of Br. Levette, and the Binney and Bland collection in the 

 American Museum of Natural History, New York. 



This species is quite distinct from any known North American or other 

 form. The number of whorls, and of teeth, their form and color, with the 

 color of the .shell and peristome, are its peculiar features. The stria; are by no 

 means so well developed as shown in the figures. (Bland.) 



The figures are copied on my ])late. 



Von Martens suggests that the species may be a Pobjgyra. 



Mesodon. (p. r^H.) 

 All the specific names should have the masculine termination. 



Mesodon Andrewsi, W. 0. Binn. (p. 324.) 



Plate II. Fig. I.. Plate III. Fig. E, F. 



Shell imperforate, globose, very thin, with delicate wrinkles of growth and 

 microscopic revolving strirc ; horn-color ; spire elevated, conic, apex obtuse ; 

 whorls six, convex, the last greatly swollen ; peristome white, thickened, 

 slightly reflected, ends separated, the columellar one expanded. Greater diam- 

 eter, 25 mm. ; le.sser, 20 mm. ; height, 14 nnn. 



Mesodon Andrewai, W. G. Binn., Ann. N. Y. Acad. Sci., Vol. I. p. 300, PL XIV. 

 Fig. E, F, PI. XV. (1870). 



Eoan Mountain, ^Mitchell Co., North Carolina. Mrs. G. Andrews. The 



