-")<> HELIX. 



H. .IATBERTI Bourg. Syria.. 



H. EDROEA Bourg. Syria. 



H. YLEOBIA Bourg. (-- lucorum Mull.) Tricarico. 



H. VIRAGO Bourg. (=lucornm Miill.) Italy. 



H. RYPARA Bourg. Northern Italy. 



H. NIGROZONATA Bourg. Northern Italy. 



H. ATROCINCTA Bourg. Northern Italy. 



r Phe following are from "Species Noviss. Moll, in Eur. Syst. detectce" 

 etc., J. R. Bourguignat, 1876. 



H. SCHAHBULAKENSTS Bourg. Armenia. 



H. STRAMIMFORMIS Bourg. Italy. 



H. EQ.UITUM Bourg. Rhodes. 



H. LUYNESIANA Bourg. Syria. 



H. DICHROMOLENA Bourg. Italy 



H. INTERAMNENSIS Bourg. Italy. 



H. GIULI.E Bourg. Malta. 



H. MELANONIXIA Bourg. Mascara, Algiers. 



The following names are from Arnould Locard's "Cat. gen. des 

 Moll. Viv. de France," 1882. 



H. KOR^EG^LIA Bourg. 



Provence, Italy, Corsica, Asia Minor, Greece, etc. 

 H. PROM^CA Bourg. France, Tyrol, etc. 



H. PACHYPLEURA Bourg. Grasse, France. 



H. UTICENSIS Letourneux et Bourguignat, Prod. Mai. Tunisie, 1887, 

 (== melanostoma). Timis. 



APPENDIX. 



RHA(JADA. 



On account of the position assigned this group by Pfeiffer, with 

 Tachea, Eremina, etc., the species were illustrated on pi. 36 of this 

 volume. Further study has convinced me that they group with an 

 entirely different stock ; and I shall therefore treat of them in a fu- 

 ture volume of the MANUAL. 



XEROLEUCA. 

 P. 22, after H. mogadorensis Bourg., should follow. 



H. OYCLO.STREMOIDES Sowerby, 1888. PI. 68, figs. 22, 23. 



Widely, perspectively umbilicate, depressed, soiled white, curruga- 

 ted ; spire concavo-depressed ; whorls 5, rapidly increasing, first two 

 smooth, brownish, the following concave, margined with an elevated 



