HELIX. 175 



more glossy and shining, and the color of a more uniform ochreo- 

 olivaceous brown speckled with small irregular angulated blotches 

 and fragmentary reticulations of yellow. It is generally smaller 

 than the H. consobrina. 



H. MAUGEAXA Shuttleworth, 1852. PL 50, fig. 94; PI. 48, figs. 

 14-16. 



Imperforate, depressed-globose, in young shells very thin and 

 transparent, in adults solid, yellowish brown or brownish yellow, 

 not shining, lightly striate and irregularly reticulate-malleate, under 

 the lens densely finely granulate, four or five fasciate, the bands 

 sometimes interrupted, the second and third frequently coalescent ; 

 spire conic, apex minute, purplish, shining, minutely rugose ; suture 

 distinct; whorls 42-5, the last rapidly increasing, large, rounded 

 tumid, toward the aperture somewhat gibbous, slightly constricted ; 

 base rather convex, slightly impressed in the centre ; aperture 

 oblique, lunate, oblong-oval, margins subparallel, subapproximating ; 

 peristome slightly thickened, reflexed, violet tinted, basal margin 

 adnate, thickened within, whitish. Diam. 20, alt. 11 mill. 



Environs of Saint Croix, Ins. Teneriffe, Canaries. 



It is H. gaudryi of Reeve, and, in part, of Pfeiffer. There has 

 been some doubt as to the precise form described by Shuttleworth, 

 and the confusion is increased by the fact that he assigns no habitat 

 nearer than " Canaries " in his description. I have accepted 

 Mabille's identification. 



The species is quite variable in the development of the bands, and 

 the intensity of the color. 



H. DISTENSA Mousson, 1872. PI. 50, figs. 89, 90. 



Imperforate, globose-depressed, rather thin, striate, obsoletely mal- 

 leate, not granulose, rather shining, reddish brown or yellowish, 

 unicolored or with five brown bands interrupted with white; spire 

 very obtuse, convex, subirregular, apex minute smooth, flattened ; 

 suture impressed ; whorls 5, slightly convex, the inner gradually, 

 outer rapidly increasing; body-whorl well rounded, not gibbous nor 

 constricted, base convex, subinflated, in the centre impressed; aper- 

 ture oblique, transversely elongate-oval and angulose, showing the 

 bauds within; peristome acute, narrowly expanded, not reflexed, 

 within labiate with white, broadly margined with white without, 

 margins not converging, subparallel, the basal margin slightly 



