OYPRINA. 143 



G. angulata of Briart and Cornet appears to be closely related to G. cuneata, 

 Sowerby (see p. 134). 



C. (Venilicardia) Jukesi, de Loriol, 1 from the Gault of Cosne, resembles some 

 forms of G. angulata* 



Remarks. — G. angulata varies in its relative height and length, and in the 

 position of the nmbones. The shell is usually stout, but occasionally rather thin. 

 Sowerby gives a good figure of G. angulata, except that the teeth, as pointed out 

 by Stoliczka, are not correctly drawn. 3 



Fig. 24. — Cyprina (Venilicardia) angulata (Sow.). Upper Greensand, Blackdown. Sedgwick Museum. 

 Eight valve x |. The hinge of this specimen is shown on Plate XXII, fig. 2. 



Types. — From the Upper Greensand of Blackdown, in the British Museum. 



Distribution. — Upper Greensand (zone of Schloenbachia rostrata) of Blackdown 

 and Haldon. Recorded, by Jukes-Browne from the Lower Gault of Wiltshire, and 

 from the Upper Greensand of the Isle of Wight. 



Cyprina (Ventltcaedia) lineolata (Sowerby), 1813. Plate XXII, figs. 5 — 8. 



Plate XXIII, figs. 1, 2. 



1811. Venus castrensis, J. Parkinson. Organic Remains, vol. iii, p. 187 (non 



V. castrensis, L.). 



1 ' Gault de Cosne ' (1882), p. 68, pi. ix, fig. 1. 



2 Morris records Cyprina alobosa, Sharpe, from the Greensand of Blackdown, but I have not seen 

 any specimen from that locality. Morris, ' Cat. Brit. Foss.,' ed. 2 (1854), p. 199. Sharpe, 'Quart. 

 Journ. Geol. Soc.,' vol. vi (1850), p. 182, pi. xv, fig. 1. 



3 From the remark on Sowerby 's figure made by Briart and Cornet (p. G9) I can only conclude 

 that they had not seen specimens of C. angulata. 



