ENNEA. 95 



Yar. QUINQUEPLICATA, Jickeli. PI. 18, figs. 58, 59. 



Aperture with two additional plicae, on the columella ; surface 

 narrowly longitudinally striate. 



Var. HILDEBRANDTI, Jickeli. PI. 18, figs. 66, 67. 



Shell brownish, costulately striate, columella callously thick- 

 ened or subbiplicate above. 



Yar. HAMACENICA, Bourguignat. (Unfigured.) 



Columella with a single plication, whorls 8, instead of 10, as in 

 the type. 



'E. CALAMELI, Jousseaume. PI. 19, fig. 96. 



Yellowish white, opaque, distantly obliquely striate, the striae 

 slightly flexuous, terminating in a denticulate suture, body- 

 whorl bisulcate ; aperture seven-dentate, consisting of a strong 

 parietal lamella, three strong columellar teeth, and three within 

 the outer lip, the tw r o anterior of which are prolonged into 

 lamellae, lip white, subsinuous, somewhat thickened and ex- 

 panded. Length, 10 mill. 



Benguela. 

 E. TRIGONOSTOMA, von Martens. PI. 18, figs. 76-78. 



Rimate, obliquely striate, the body-whorl bisulcate ; aperture 

 subtriangular, quadriplicate, a large compressed parietal plica, 

 outer lip incurved in the middle, with two palatal plicae not 

 attaining the margin, columella with a deep-seated subvertical 

 compressed plica. Length, 15-17 mill. 



Bonjongo, W. Africa. 

 E. BATALHANA, Pfr. PL 18, figs. 51, 52. 



Rimate, somewhat solid, closely costulate-striate, suture sub- 

 denticulate, last whorl bisulcate; alabastrine, translucent, 

 whitish ; aperture with a strong parietal plica, two palatal 

 lamellae, and a subdentate callus on the outer lip, corresponding 

 with an exterior slight inflection, lip expanded, reflected. 



Length, 7 mill. 



Batalha, W. Africa. 

 E. CHAPERI, Jousseaume. PL 18, fig. 64. 



Yellowish white, translucent, obliquely subundulately striate ; 

 last whorl profoundly rimate, bisulcate ; aperture with a parietal 

 plica, two palatal lamellae and a tooth-like projection on the 



