368 Two New Sjjccie^ of Zoniteis. 



[From the Annals of the N. Y. Academy of iSciences, Vol. II, No. 12. 1883.] 



XXII. — Bescripfion of Two JVew S'jjecies of Zonites from 



Tennessee. 



BY THOMAS BLAXD. 

 Read May 21st, 1883. 



Zoiiiles Wlieatleyi, uov. sp. 



T. umbilicata, depressa, tenuis, nitens, pellucida, fusculo-cornea, de- 

 licate striatula ; spira sub-planiilata ; sutura leviter impressa ; anfr. 4^, 

 convexiusculis, ultimiis basi convexior, ad aperturam rapide accrescens, 

 vix descendens ; umbilicus pervius ; apertura depressa, oblique lunaris ; 

 peristoma simplex, acutum, marginibus approximatis, callo tenui junctis. 



Fig. I. 



Shell umbilicated, depressed, thin, shining, pellucid, 

 brownish horn-colored, finely striated; spire subplanulate, 

 suture slightly impressed ; whorls little convex, the last 

 more convex at the base, rapidly increasing at the aperture, 

 scarcely descending ; umbilicus pervious ; aperture de- 

 pressed, obliquely lunate ; peristome simple, acute, the 

 margins approximating, joined by a thin callus. 



Diam., maiorS, min. 3i ; Alt.. 2 mill. 



Z. Wheatkyi. 



Hahitat. — The Cliffs, Knoxville, Tennessee, Mrs. George 

 /y^ / Andrews ; also, Tiverton, Khode Island, J.^. Thomson. 



Remarks. — This, with the following species, was discovered 

 and communicated to me, in 1879, by Mrs. Andrews, who thus 

 described the locality in which the two species were found : — 

 '' The Cliffs rise up 200 feet on the south side of the river, — 

 they are very steep and rocky, face the north, are almost always 

 shady, damp, and covered with mosses and ferns. I collected 

 the shells on the ledges of the rocks among the dead leaves, at 

 an elevation above the river of about 100 feet. I have not found 

 either of the species in any other locality." 



Mr. J. H. Thomson, to whom I submitted specimens, sent 

 to me examples of the same species collected by him, "^on a 

 high rocky ledge, covered with old trees, at Tiverton, Khode 

 Island." 



