HELTX. 51 



H. TURBINELLA, Morelet. PI. 5, figs. 17, 18. 



Umbilicus very narrow ; whorls 5, slightly convex, the last 

 compressed, subangulated, irregularly, subobliquely, rugosely 

 striulate, diaphanous, thin, greenish white. Diam. 5 mill. 



Guatemala. 



H. ALMONTEANA, Tristram (unfigured). Guatemala. 



Section PYRAMIDULA, Fitz., 1833. 

 H. RUPESTRTS, Drap. PI. 9, figs. 87-90. 



Umbilicated, minutely striated, waxy, brownish corneous ; 

 whorls 5, convex, the last not descending; aperture rounded. 



Diam. 3'25 mill. 



Europe. 



It is" H. umbilicata, Montagu ; H. aliena, Ziegler ; H. spirula, 

 Villa; H. saxatilis, Hartm.; H. Myrmecidis, Scacchi. 



Yar. TROCHOTDES, Fer. Fig. 90. 



Trochoidal, dark brown, narrower umbilicus. 

 Var. PINII, Adami. 



Larger, pyramidal, striae stronger, suture deeper ; whorls 

 more rounded. Diam. 3-4 mill. 



N. Italy. 

 H. JAENENSIS, Clessin. PI. 9, figs. 91, 92. 



Moderately umbilicated, thin, finely striated, brownish corne- 

 ous, apex obtuse ; whorls 5-5^, rounded, with deep suture, slowly 

 increasing. Diam. 2, alt. 2'5 mill. 



Jaen, Spain. 



Perhaps only an elevated var. of H. rupestris. 



H. ASSARTNENSIS, Calcara. PI. 9, fig. 93. 



Umbilicated, fulvous chestnut, maculated with white ; whorls 

 5, flatly convex, longitudinally obliquely striated, first two 

 smooth. Diam. 6 mill. 



Sicily. 

 H. PLACIDA, Shuttleworth. PI. 9, fig. 94. 



Widely umbilicated, thin, diaphanous, waxy, corneous, lightly 

 striate ; whorls 5, convex, slowly increasing, the last scarcely 

 descending in front. Diam. 3'25 mill. 



7ns, Teneriffe. 



