Description of a neio Sjpecies of Helix, etc. 361 



The latter portion i-elating to chemistry is mainly a condensation of 

 Hoefer's larger work noticed above. 



RupiiECHT, Rudolph. Bibliotheca Chemica et Pharmaceutica. Alphabet- 

 isches Verzeichniss der mif dem Gebiete der reinen, pliarmaceutisclien 

 physiologisclien und technischen Cliemie in den Jahren, 1858, bis Ende 

 1870, in Deutschland und im Auslande erschienenen Schriften. 8vo. 

 GQttiugeu, 1872. 



A continuation of Zuchold's Bibliotheca Chemica, similarly arranged 

 but evidently collated with less care and completeness. 



RoDWELL, G. F. The Birth of Chemistry ; in "Nature," Vols. VI and VII. 

 1872-73. 



A popular essay full of research, especially rich in the knowledge of 

 the Egyptians. It embraces only the period prior to 1680. 



XXXII. — Description of a new Species of Helix, and Note 

 on H. Mobiliana, Lea. 



By THOMAS BLAND. 

 Read Jan. 5, 1874. 



Helix '^Vetlaei'byi, no v. sp. {Mesodon). 



T. obtecte-perforata, orbiculato-depressa, tenuis, granulato-striata, pal- 

 lide cornea; epidermide fusca, pilis prostratis, obliquis obsita, induta; 

 epira breviter conoidea, sutura impressa, apice obtusiusculo ; anfr. 5, con- 

 vexiusculi, lente accrescentes, ultimus antice subito deflexus, gibbosulus, 

 constrictus, subtus convexus, ad peripheriam subangulatus ; apertura 

 obliqua, rotundato-lunari, dente albo, erecto, obliquo, linguseformi, parie- 

 tali munita; perist. labiatum, augulatim reflexura, margine supero ad 

 insertiouem expanse, columellari dilatato, adnato. 



Shell with umbilicus covered, orbicular-depressed, thin, 

 graiiulately striate, pale horn-colored ; epidermis dark, 

 covered with oblique, prostrate hairs ; spire somewhat co- 

 noidal, suture impressed, apex obtuse ; whorls five,- slightly 

 convex, gradually increasing, the last suddenly deflected, 

 rather gibbous, constricted, beneath convex, subangulate at 

 the periphery ; aperture oblique, roundly lunate, with a 



