29 



Ipsa verba Conradi transcribam, quam über Lyn- 

 chii citra Oceanum minus quam par est innotuerlt. vCaro- 

 colla tahcrculosa. Troclüform , inmufehj umhilicated: 

 i^pire elevated, vo/uiio7is each with a iuherculated curina 

 above the sutiire and a rerolimg serirs of srnallcr tuher- 

 des in the mkldle ; sidcs of volations flaiiemd and ohli- 

 qiie, transversely ragose; perifherij of boditwhurl prc- 

 foundly caruiated^ the carina refleeted and farnished with 

 numerous uncqual tabercles', base conrex , profoundhi 

 rag ose; perisiome refleeted. Loeal: Shore of the De ad 

 sea. A singte specimen with the two volutions nearest 

 the apex hroJien, ivas obtained. The shell is bieached and 

 remarlablg siinilar in form to a speeies of Trochus.'^ 



23. Helix trochoides Poir. 

 Pfr. Moiiogr. Hei. I, p. 180. 



Specimliia graeca mimita: diam. et alt. 4 millim. 



24. Helix Boissieri Charp. 

 Pfr. Monogr. Hei. I, p. 436. 



Descriptioni singularis hujus speciei addendum, quod 

 In adultis faux obscure fusca inveniatur. Sunt mihi multa 

 specimina, in quibus appareat, angulum peristomatis supe- 

 riorem revera aliter formari quam nostri autores statuerunt : 

 margo dexter, ubi ad angulum ventum est, eandem cras- 

 sitiem recuperat, quae adscendenti propria, medio ut angu- 

 lus lateralis formetur deest; jungitur deinde tuberculo calli 

 parietalis, non ita arete tarnen, quin absit limes inter mar- 

 ginem et tuberculum: restat semper canalis modo profun- 

 dior modo tenuior. 



25. Helix candidissima Drap. 



Pfr. Monogr. Hei. I, p. 282. 



Simul cum Uel. Boissieri prope St. Sabam aliisque 

 Judaeae locis specimina inventa, quae idem tuberculum, 

 quod supra Uel. Boissieri nuncupavi, ad callum parietalem 

 gerant: immo specimina aliquot Sardoa, Nicaeensia, Paler- 

 mitana eo non plane carent. 



