IIKI.IX. 



II. SERTA AllK>i-s, l*.->4. IM. 50, figs. 84, xr>. 



Similar to the preceding, but less strongly striate, and with much 

 more variegated coloration ; the brown bunds arc narrow, very ir- 

 regular, much interrupted by patches and articulations of cream 

 color. Diam. 1(>, alt. 11 mill. St. Nicola*, ('<i/>e Verde I*. 



II. FOGOENSIS Dohrn, 1869. Unjigurf. 



"Covered umbilicate, subglobose, striatulate, shining, corneous 

 yellow, with four brown bands, the first and second with central 

 line of white ; spire obtuse, cuuic; suture impressed; whorls 5, con- 

 vex, the last rounded, descending anteriorly ; aperture diagonal^ 

 lunate-rotund ; peristome white, slightly expanded, margins converg- 

 ing, connected by a thin callus, columella reflexcd over umbilicus, 

 thickened. Diam. 17, alt, 14 mill." 



Fogo and Brava, Cape Verde Is, 



The following quotation from Wollaston may aid in the identifi- 

 cation of the present, species, which I have never seen. 



"In its rather globose outline, dull hue, and uninterrupted bands, 

 this Helix has somewhat the prima fastie aspect of the (nevertheless 

 totally dissimilar) Porto-Sanctan H. punctulata Sow.; though in 

 reality it belongs to an altogether different group. It is indeed 

 closely allied to the II. visgeriana, as is evident, not merely from 

 its ^eneral plan of coloring and from its umbilicus not being com- 

 pletely closed over, but likewise from the presence of the minute 

 spiral lines which (under a high magnifying power) are everywhere 

 visible on its surface. Specifically however, it is quite distinct, it 

 being not only larger and more globose, and of a uniformly duller 

 tint, but likewise with the minute spiral lines (which look more like 

 indistinct subundnlating scratches) more irregular and obscure, and 

 with the oblique transverse costie well-nigh obsolete, and (such as 

 they are) concolorous with the rest of the surface, the entire shell 

 appearing comparatively smooth and unsculptured. Its umbilicus 

 too, is a little less closed over, and its suture is very deeply im- 

 pressed." 



H. VISGERIAXA Dohrn, 1867. PL 66, fig. 80c. 



Covered perforate or nearly so, globose depressed, shining, corne- 

 ous, with four or five narrow dark brown bands of which two are 

 below the periphery, and which are frequently interrupted by reg- 

 ular strong oblique whitish stris? ; revolving impressed lines visible 

 chiefly in the interstices of the stria?; whorls 3 ', slightly convex. 

 13 



