? - 



Superfamil;; . I A £ A . 



■family Oardiidae. 

 '^-eii'- ;A?JDIUi.' (Linnaeus) Briifuidre. 



SulDgenus Oarditun s. s, 



CARDIiai {2'r"'^- ji^..i-j^ji^_,... n. sp. 



Desorj-jti i n.- Shell snail, well infla.^-^r'. , si^'hem.iilateral, 

 suborbiculax-, the lower part of the posterior i.ar^-iii slishtly 

 suhtrui-^cated ohliq-aelj^"; unfoones tumid ai id, hnt not very 



high; external Ir-t^rce o" forty-three lov. _. i?l ribs, flat- 

 topped, hut s^ifrhtly raised at thei ' , oarated by nar- 

 rovver, sharply defined, channelled interspaces; each rih hearir^ 

 r -r.-.n of laterr^ily compresse'1, trianp-nlar, " nr small, lioTlow 

 ii._ s , their open ends beirx5" directe" ' the ventral mar-'...; 

 in the raedian portion of the sliell ribs bearing- lar^-e spir.es and 

 those ornamented with small spines altrirr. r-^t n--; anteriorly large 

 spines p: " \nating and posteriorly sraall ones ; posterior marrin 

 of the valve deeply serrate; internal surface with relatively con- 

 3pici:ous radial marking's. 



Dimensions .- lat., 23 ram.; alt., 27.4: mra. ; semidiam., 9.5 mm. 



'^emarhg .- 'rhis curiously scxilptured species is represented 

 "■; - complete valves and sevoi-al fragments. Tliat is reaches a 



