HELTX. 51 



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



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

 compressed, subangulated, irregularly, subobliquely, rugose! y 

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



Guatemala. 



H. ALMONTE ANA, Tristram (unfigured). Guatemala. 



Section PYRAMIDULA, Fitz., 1833. 



H. RUPESTRTS, Drap. PL 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. TROCHOIDES, Fer. Fig. 90. 



Trochoidal, dark brown, narrower umbilicus. 



Yar. PINII, Adami. 



Larger, pyramidal, striae stronger, suture deeper ; whorls 



more rounded. Diam. 3-4 mill. 



N. Italy. 

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



Moderately umbilicated, thin, finely striated, brownish corne- 

 ous, apex obtuse ; whorls 5-5-j, 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. PL 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. PL 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. 



Jns. Teneri/e. 



