CvECILIOIDES, ATLANTIC ISLANDS. 7 



2. C. EULIMA (Lowe). 



Shell linear, very narrowly cylindric, very slender, generally 

 very indistinctly curved; spire long subconic-cylindric, the apex 

 obtuse; suture very oblique, distinctly margined. Whorls 6, 

 flat, the middle ones long. Aperture short-obovate, acuminate 

 above, entire and arcuately rounded below, much shorter than 

 the spire; parietal wall uniplicate in the middle, the fold trans- 

 verse, entering; peristome simple, acute, the margins joined by 

 a somewhat thick callus, the right margin rounded, continued 

 in a regular curve into the basal and columellar margins. Col- 

 umella curved and slightly twisted, not abruptly truncate, but 

 gradually and easily passing into the basal margin. Length 

 2.5 to 3, diam. 0.75 lines (WolL). 



Madeira: probably in the Funchal district, recent; Porto 

 Santo, very rare, fossil (Wollaston). 



Achatina eulima LOWE, P. Z. S. 1854, p. 201. WOLLASTON, 

 Testacea Atlantica 1878, p. 244. 



"The most important feature which separates the A. eulima 

 from the acicula consists in the presence of a conspicuous medial 

 plait on its ventral paries ; but it has other characteristics also 

 which combine to separate it from that species. Thus it is not 

 only longer, more cylindric, and proportionately still slenderer, 

 with a tendency to be obsoletely bent (as in the marine genus 

 Eulima^ but its whorls (particularly the intermediate ones) 

 are altogether more lengthened-out and flattened, and its aper- 

 ture is relatively a little shorter, as well as broader (and more 

 rounded) posteriorly, the basal margin being more obtusely 

 arcuate, and merging almost without an intervening angle into 

 the columella, which is narrower gradually (and is not abruptly 

 truncate) behind. The suture is exceedingly oblique, and its 

 surface is of a hyaline white." (Wottaston). 



This species apparently belongs to the section Rhaphidiella of 

 Maltzan. See species No. 6. 



3. C. NYCTELIA Bourguignat. PI. 2, figs. 32, 33. 



This shell has the usual acicular shape, clear corneous texture 

 and smooth surface. Whorls 5J, very slightly convex, the 

 penultimate and preceding whorls widening more rapidly than 



