182 CRETACEOUS l.AMELLIIiliANCll lA. 



DdSiN-K.i'si.s cAi'KiJATA (Suin'rhj/), 18:2(5. I'late XXVI 1 1, tigs. 7— JU. 



1826. Venu.s capkkata, J. de C Sowerhi/. Miii. CoiilIi., vol. vi, j). ol, [il. ilxviii, 



figs. IS. 

 18.50. — ~ A. d'Orhlijitij. Prodr. de Pal , vol, ii, \,. 159. 



1854. Cytheuea — J. Morris. Cat. Brit. Poss., cd. 2, p. 200. 



18(j5. Venus capekata, F. J. Fidel and 0. Camjnche. Poss. Terr. Crct. Ste. 



Croix (Mater. Pal. Suisse, ser. 4), 

 p. 189. 

 lst;8. — — .1. liridrl ami F. L. Cornet. Meule de Bracquegnies 



(Mem. cour. et Mem. des Sav. 

 elrangers, vol. .\.\.\iv), p. 74, pi 

 vii, figs. 6 — 8. 

 1870. — — /•'. Shdli-Aa. Paheuiit. In.lica, Cret. Paumi S. ludia, 



vol. iii, p. 1(10 {Caryatis). 



V Noll |S|.-,. — — A. d'Orh'iijiiij. Pill. Fraiie Terr. Cret., vol. iii, p. 445, 



pi. eeel.\.\.\v, tigs. 9, 10 ( 1'. iiiiljijniiin. 

 Prodr. de Pal., vol. ii, p. 236). 



Ih:sfrij)lii>)i. — Sliell oval, conve.x, uioderately or considerably iHe(|iiilateral ; 

 length ratlier gieater than height. Antero-dorsal margin concave. Anterior 

 margin rouiuU-d, pa.ssing gradually into the convex ventral margin. Posterior less 

 convex tiian the anterior margin, sometimes subtrnncate. Postero-dorsal margin 

 long, slightly convex. Unibones pidniinent, curved anteriorly. Ltuiule ovate. 

 Pallial .■<inn.'^ lat her large, sulj-angidar. Ornamentation consists of strong, regular, 

 concentric ribs. 



Hinge : Tn the right valve three stout cardinals separated dorsally, the anterior 

 and median i)eing close together and nearly vertical, the posterior obliijue and 

 divided hy a longitudinal groove ; there is an antei'ior elongate pit and a strong 

 postei-ior lateral tooth. In the left valve the median is the stoutest of the three 

 cardinals and is sometimes juincd dorsally to the neai'ly vertical anterior cardinal; 

 the posterioi- cnnlinal is slender and \ery obliipie; the anterior lateral is strong, 

 elongate and ])ar:illcl to the liiiiular ni;ti'gin. 



Mea.^arciiU'iif.s : 



(1) (^) i-i) W 



Leugth . ot . 31 . 30 . 128 . 



Height . :>0-5. 2'.» . 2G . 24.-5 . 



(1 H) Blaekdown. 

 Ui'iimrks. — Internal castti from the Folkestone i3eds of I'ulborough were 

 referred to this species by Forbes. I have not seen any s])ecimens which wcndd 

 enable me to record the oeeurri'nee of l'. cupcrata in the Lower Creensand. 



