98 CO^CliMA\ — DITIiy/iA. 27. 



Scopuia. PsAMMoKtA tc.sfd rcnifuriiii, hitcie anlicn hifariuin sfn'afo, 

 doiiihtis crt'clis. 

 Shell kiiincv-sluipcd, striate in (wo directions on tlie anterior 

 side, Willi ;ili (lie (eetli ereit. 



Tah. iiosf. G, li^. 11 Jind 12 

 Solen S. Martlue. C/iimiii/z, xi. p. 203, lab. 198, fi<i, 1938. 

 Mus. nusf. Dreilited near Exmoulli. 



Shell tliree ci^liths of an incli loni^, and as niiuii a<;ain in 

 breadth, clear "lossy •.vhitf inside :ind outsiile resenihlin": the last 

 in its iiiarkjn<is, Ijut is distiiiguislied bv tlie lolionini^ particulars, 

 independent of the si/.e. 



'Ihe sides are more open, where the valves arc a little reflected : 

 in the middle there is an evidint coMtraction yi»iM<i it a kidney- 

 like form: tiie oblique strise are not more than twenty in 

 number, extending over about half thesurliue: the beaks are 

 more jironiinent ; and the teeth most essentially distini^iiish it 

 from (he young of the last, all of them being cr(;ct and close 

 together, one subulate and a little recurved, the other Hat. 



27. TV.Lhmk—lANNE. 



Testa tratisiirrsa vel snhorhicvlatis, pJanittsctiht, ina'quilnle- 

 ralis, latere anticojlexvoso-jilicato. Cardo dvutilnts stifdx'in's: 

 laicralilnis sa'pe lemotis. higamentnm earteniuiii, ad latiis 

 brevius. 



