X. 39 



[Caseolus, Lowe.] 



H. SPH^RULA, Lowe. PI. 8, fig. .">2. 



Very minutely perforate or im perforate, rather solid, substriate, 

 sparely granulate, a little shining, smooth towards the a;><-\, suture 

 impressed; whorls .">-7, slightly convex, slowly increasing, the hist 

 suddenly deflected in front and a little contracted, periphery obso- 

 letely angulated, base flattened ; peristome subsimple, scarcely ex- 

 panded, callous within at the base. Diain. 4 - 5-7 mill. 



Porto Sancto ; fossil in Madeira. 



H. snbcallifera, Lowe is a synomym. 



H. CONSORS, Lowe. PI. 8, fig. 3.">. 



Subperforate, costulately granular above, smooth, striulate and 

 shining below, variegated with white and chestnut, base paler; 

 win iris 6, flatly convex, the last suddenly deflected in front, periph- 

 ery obsoletely angulated; aperture white, peristome simple, with 

 distant margins, Diam. 9 mill. 



Ins. Porto Sancto. 



H. CALCULUS, Lowe. PL 8, fig. 34. 



Sul > perforate, solid, striulate, finely, closely granular throughout, 

 yellowish ash color or chalky white, obsoletely double banded with 

 chestnut, suture impressed ; whorls o?>-6, somewhat convex, the last 

 deflected in front, periphery bluntly angulated; peristome acute, 

 subcontinuous, slightly expanded. Diam. 7-8 mill. 



In*. Porto Sancto. 



It is H. comjjacta, ,1, of Albers. 



H. COMPACTA, Lowe. PI. 8, fig. 35. 



Perforate, somewhat solid, costate-striate and granular above, 

 striulate, smooth and shining below, variegated with white and 

 corneous, with an obsolete brown band below; whorls 6, slightly 

 convex, the last obsoletely augulated, scarcely descending in front; 

 peristome simple, margins approximating. Diam. 6 mill. 



Ins. Porto Sancto. 



H. iniioinhiata, Gray is a synonym. 



H. ABJECTA, Lowe. PI, 8, fig. 36. 



Perforate, solid, minutely granular, rugosely striate above, grey- 

 ish, below with an obsolete chestnut band, spire elate; whorls 6^-7, 

 the last subcariuated, suddenly deflected in front, base a little con- 



