184 HELIX. 



subparallel, the columellar lengthily adnate, broadly expanded r 

 covering the umbilicus with a white callus. 

 Diam. 18-19, alt. 10 mill. 



Canary Is. 



Allied to H. saponacea, but distinguished by the less depressed 

 form, more elevated spire, more rapid increase of the whorls, les& 

 developed peristome, etc. 



H. BITUMIXOSA Mabille, 1883. PL 48, figs. 96, 97. 



Depressed, subglobose,thin, subfragile, slightly shining, irregularly 

 costulate-striate, especially on the last whorl, and superficially 

 malleate, all over, under a lens minutely punctulate, intensely black, 

 the apex reddish ; spire a little convex, apex minute, rugose granu- 

 late; whorls 5-6, regularly increasing, separated by a slightly 

 impressed suture, the last large, convex-rounded, obscurely angled 

 at the periphery, toward the aperture gibbous, briefly descending, 

 slightly constricted behind the peristome; aperture wide oblong- 

 ovate, oblique, lunate, fauces violaceous, margins subcon verging; 

 peristome thin, vivid violaceous, labiate, outer margin well arched,, 

 columellar subconcave, with a slightly prominent white lamina. 



Diam. 23-25, alt. 13, 14 mill. 



Ins. Grand Canary. 



H. MERITA Mousson, 1872. Unfigured. 



Imperforate, convex-orbiculate, rather distinctly moderately 

 striate and obscurely rugulose, irregularly granulate, shining, yellow- 

 ish-white, trifasciate with brown; spire obtuse, depressed conic,, 

 apex flattened, very finely rugulose; suture subimpressed, not 

 marginate; whorls 4J-5, the upper flattened, rapidly increasing,, 

 carinate, the last abruptly descending, subturgid at sutures, convex 

 below,subangulate,the angle disappearing on the last portion, which 

 is subgibbous and constricted ; aperture oblique, transversely sub- 

 quadrate-rounded, corneous; peristome obtuse, briefly expanded, 

 margins distant, scarcely converging, joined by a callus, the basal 

 straightened, elongate-subdentate in the middle, appressed and 

 adnate. Diam. 27, alt. 16 mill. 



Ins. Gomera, Canaries* 



Form more conic, and at the same time more depressed than its 

 allies. Only found fossil. 



