< III l"\. 



///, /;./.>/ ///. 

 kTiLia Reeve, PL W I, 84, 



Shell OVftte, valvr< very e|..<ely elevately -iriatrd t li roiiL'hoiit , 



ad there inn rarely, bifurcately-divergent, intfi 



rather exeavated. \\\ Q, vell<\\i.-li in the middle, \\ith nar- 



row transverse im-en bands. Ligament .~<|iiamately coriaceous, 



scales pair >ea irreen. 



A peculiar smoothly bronzed shell, painted across the middle with 

 narrow hands or ripples of green. (Reeve.) 



sima } .////'///. 



C. aqiidtilis REEVE, Conch. Icon., f. 7-'5. 



Reeve gives no locality for this species. The figures on my 

 plate are copies of his. 



Carpenter writes as follows of Reeve's type specimen : One spec- 

 imen made up of two, only the valves stuck together. I counted 

 just eleven scales in one corner, though Reeve describes and figures 

 it as complete. The very insertion-plates are in great measure 

 rubhed off. It may equal my C. densiliratus in poor condition. 

 Anterior valve having 10, central valves 1, posterior valve 1:5 slits ; 

 teeth pectinated ; eaves short. Shell rather elevated, the dorsal 

 ridge sharpish. Central areas with extremely close fine parallel 

 striae, jugal area not defined. Lateral areas not elevated, having 

 1 ^ radiating lines, extremely close and fine, as on central areas, but 

 rather more developed ; the end valves similarly sculptured, mucro 

 in front of the middle; posterior slope very concave. Marked 

 "? Japan"; and the habitat of a specimen sent by Damon for pur- 

 chase is Tsu-Hina, Japan. The valves alone, without -'irdle, and 

 irregularly placed measure: 



Length 40, breadth 23 mill.; divergence !<)."> . 



C. PKNsiuuATrs Carpenter, n. sp. 



Shell oval, solid, elevated, the jiiu'iim acute : mucro scarcely 

 prominent, subantcrior. Ashy or pale bmwii, irregularly clouded 

 with chestnut or black, often eleirantly dotted with darker or paler. 



Central areas having about *2~> rildet< on each side of the juu r um 

 and parallel with it, obsolete at the rid;re: lateral area- well defined, 

 having S-10 line, sometimes bifurcating; end valve< having * : 

 such line. 



