150 ATILTA. 



with two narrow chestnut bands, sometimes livid purple without 



bands ; exterior margin of aperture varicose, thickened and 



smooth within. Length, 13 mill. 



N. Australia. 

 C. EXiMTA, Reeve. PI. 53, figs. 7, 8. 



Shell smooth, shining, transparent orange, finely reticulated 



with brown, encircled by two bands of opaque, snow-white flakes ; 



whorls rather flat, the last contracted and grooved at the base, 



slightly recurved ; aperture small, lip varicose, slightly notched 



at the upper part. Length, 10 mill. 



Port Jackson, Australia, 



G. bicincta^ Angas (fig. 8), is a synonj'm. 

 C. ExiLis, Phil. 



Shell small, narrowly fusiform; whorls six or seven, flattened, 



obsoletely longitudinally plicate ; fulvous, with two white bands, 



one of which appears on the spire ; lip slightly inflected and 



thickened in the middle. Length, 4 mill. 



Red Sea near Aden. 

 Not figured. Unknown to me, 



C, PUMILA, Dunker. 



Shell small, elongated, attenuated at both exti'cmities, uni- 



colored, fuscous ; whorls six, longitudinally costate, the costfe 



covering half the last whorl, which is lirate at the base; columella 



sinuous ; lip sliglitly thickened, plicate or subdentate within. 



Length, 4 mill. 



Japan. 

 L^nfigured. Said to resemble G. exilis, Phil. 



C. SERTULARiARUM, d'Orb. PI. 53, figs. 9, 10. 



Shell elongated, smooth, striate at base, sometimes slightly 

 longitudinally folded on the bod3'-whorl; yellowish-white, faintly 

 banded with brown, with sutural markings of brown and white, 

 alternately; lip thickened, not dentate. Length, 12 mill, 



San Bias, Patagonia. 

 C. ELATA, Reeve. PI. 53, fig. 11. 



Shell solid, spire produced, whorls rather narrow, longitudinally 

 plipately ribbed ; white, longitudinally strigated and waved with 

 chestnut ; aperture small, columella thinly lipped. 



Length, 19 mill. Habitat unknown. 



Described from a shell in the Cumingian collection, 



