260 



HELICELLA. 



H. idia L. & B., iii, 256. 

 H. ledereri Pfr., iii, 259. 



/. regularis Roth. 

 H. moraguesi Kob., iii, 255. 

 H. micropristis ADC. 



/. appressispira Anc. 

 H. milaschewitschi Ret. 

 H. morata Mouss., iv, 43. 

 H. montserratensis Hid., iii, 257. 

 H. multipunctata Mouss., iv, 43. 

 H. nummuliformis Ret. 

 H. nyelii Mitt., iii, 258. 

 H. orophea West. 

 H. parableta Bttg. 

 H. pollenzensis Hid., iii, 257. 

 H. ponsii Hid., iii, 257. 

 H. ponsonbyi Kob., viii, 183. 

 H. prseclara Caf., iii. 252. 

 H. prietoi Hid., iii, 257. 

 H. pulverulenta Lwe., iv, 43. 

 H. retowskii Cless., iii, 252. 

 H. rouvieriana Bgt., iii, 255. 



H. rozeti Mich., iii, 254. 



v. oxygyra West. 

 H. rozetopsis L. & B. 

 H. setabulensis Pfr., iii, 256. 



serrula Morel. 



H. siderensis Malz., viii, 181. 

 H. sigensis Kob., iii, 256. 



/. jolyi Pech., Anc. 

 H. siphnica Kob. 

 H. spratti Pfr., iii, 253. 

 siderites Friv. 



v. perplanata Pils., viii, 181. 

 H. syrensis Pfr., iv, 28. 

 H. syrosina Bgt. 

 H. tineaua Ben., iii, 253. 



v. raista West. 



v. kobeltiana W. 

 H. tissotiana Bgt. 

 H. tristrarai Pfr., iii, 253. 

 H. usticensis Calc., iii, 254. 

 H. zeugitana L. & B., viii, 182. 



Insufficiently knoivn forms of Jacosta : H. chola Pech., caficii (Ad/ 

 West., hierica Bgt., tineifornris Let. & Bgt., soleilleti Bgt., hodni 

 Anc., melosina Bgt., sageti Bgt., orphea West., morini, chthamalo- 

 lena, ablennia, hyperconica and tellica Bgt., eufidana callistoderma 

 and conicula Let. & Bgt., mitidjana and bibanensis Anc., eu] 

 hacodes and sphajdota Malz. 



Section Xeroleuca Kobelt, 1877. 



Xeroleuca KOB., Jahrb. D. M. Ges. 1877, p. 25. Conf. Schepman, 

 Jahrb. 1877, p. 271, 272, anat. of mograbina and degenerans. 



Shell depressed and widely umbilicated, solid, whitish and chalky, 

 having one, two or three spiral keels ; surface roughly sculptured. 

 Type H. turcica Chemn. 



The species are mostly from Morocco. Genital system (pi. 69, 

 fig. 11, H. mograbina) substantially as in Helicellaericetorum, but 

 the dart sacks are smaller. 



