328 



HELIX. 



H. granomalleata Well., iv,178. H. quadricincta Morel., iv, 182. 



H. vermiplicata Woll., iv, 178. H- berkeleii Lwe., iv, 186. 



H. amblasmodon Mab., iv, 179. H. saponacea Lwe.. iv, 183. 



H. zorgia Mab., iv, 179. H. psathyra Lwe., iv, 183. 



H. planorbella Lam., iv, 180. H. thespesia Mab., iv, 183. 



villiersii Orb. H. bituminosa Mab., iv, 184 



v. incisogranulata Woll. H. merita Mouss., iv, 185. 



H. inutilis Mouss., iv, 181 H. harmonica Mouss., iv, 185. 



H. plutonia Lwe., iv, 181. H. gomerensis Morel., iv, 185. 



H. semitecta Mouss., iv, 181. H. thoryna Mab., iv., 185. 



H. paivanop^is Mab.,iv, 182. H. hedeia Mab., iv, 186. 



paivana Morel., not Lwe. H. digna Mouss., iv. 186. 



Section Iberus Montfort, 1810. 



Iberus MONTF., Conch. Syst. ii, p. 146, type L guaUerianus. 

 Euiberus WESTERL. Fauna Palaaract. Binnenconch., Helix, p. 367, 

 1889, same type. Macularia ALBERS, Die Hel. 1850, p. 80. 

 LOWE, P. Z. S. 1854, p. 166, type H. niciensis Fer. H. & A. AD., 

 Gen. Rec. Moll, ii, p. 210. Not Macularia of v. Martens and sub- 

 sequent authors. Murella PFR., Mai. Bl. xxiv, p. 8, proposed for 

 H. serpentina, surrentina, theresa;, strigata, carseolana, meKtensis, 

 provincialis, muralis. MONTS., Moll. Terrest. della Isole adiacenti 

 alle Sicilia, p. 32, 33, restricted to group of H. serpentina. Trans- 

 iberus MONTS., Moll. Terrestri, etc., (in Atti della R. Accad. di Sci- 

 enze, Lettere e Belle Arti (3) ii), p. 33, 1892 ; proposed for Sicilian 

 Iberus. 



Shell rather cretaceous, imperforate or partly covered perforate, 

 varying from depressed or lens-shaped to globular ; solid, smooth or 

 wrinkled, with to 5 spiral bands. Last whorl rounded or keeled, 

 deflexed in front. Aperture very oblique, subovate. Lip expanded 

 on outer and basal margins and thickened within ; columellar lip 

 reflexed, dilated toward insertion. Type H. gualtierana L., pi. 44, 

 fig. 8. See also pi. 44, fig. 15, H. scabriuscula ; figs. 16, 17, H. mur- 

 alis ; fig. 18 H. sicana. 



Jaw (pi. 67, fig. 7 H. serpentina) with 3-6 ribs, denticulating the 

 margins. Sometimes the ribs are almost obsolete. Radula char- 

 acterized by the lack of side cusps on central ami lateral teeth, the 

 middle cusps being about as long as the basal plates. Marginals 

 with a long bifid inner cusp and small simple or bifid ectocone (pi. 



