APPENDIX. 127 



This must be the Cyprid referred to by Mr. Duff in his description of the shales at 

 Linksjfield, where Estheria minuta, var. Brodieana, occurs (see above, p. 67). Although 

 the trivial name is not the best that could be found for it (as its oblong form hinders 

 its convexity from making it globose), yet I will not interfere with the name given by its 

 first observer. 



This Rhaetic Candona is very like the Tertiary C. Forhesii and other closely allied 

 forms, including the Mesozoic C. Bo^ersii and the recent C. reptans, its relative size and 

 proportions making but little real distinction. It is well, however, that it should have 

 a distinctive name for convenience of geological grouping. 



C. globosa occurs in great numbers, and in many laminae, in the greyish calcareous 

 shale or marl at Linksfield ; and Estheria minuta, var, Brodieana, sometimes appears on 

 the same bed-plane. 



8. Candona Kotahensis, sp. nov. PI. V, fig. 25. 



Cypuis, Hislop, Quart. Journ. Geol. Soc, 1861, vol. xvii, pp. 348 and 353 ; Journ. 

 Bombay Asiatic Society, 1861, vol. vi, p. 201. 



Length, -^^ inch. Breadth, about /„ inch. 



Carapace sub-cylindrical, smooth; carapace-valves oblong, with equally rounded 

 ends ; dorsal margin neatly rounded in front and behind. 



This Candona is plentiful with Estheria Kotahensis in shale at Kotah, on the 

 Pranhita, Central India (see p. 52). It is found also in a limestone there. 



The same general resemblances are to be observed for this form as in the case of 

 C. globosa, C Bogersii, &c. As it is advisable that we should be able to recognize it 

 by name, I give it one, though its slight difference of outline is the only tangible feature 

 of distinction. 



9. Cypbidea Valdensis, Sowerhy, sp. PL V, figs. 26 — 30. 



Cypuis Faba, Sowerby (not Besmarest). Annals Philos., 1824, vol. viii, p. 376 ; 



Min. Conch., p. 485. 

 Cypbis V-i-LDENSls, (Sower/^y. Trans. Geol. Soc, 2nd ser., 1829, vol. iv, p. 177 and 

 p. 344, pJ. 21, fig. 1. 

 — — Bunker. Monogr. Norddeutsch. Wealdenbildung, 1846, p. 59, 



pi. 13, figs. 24, 29. 



Height, about -^\ inch. Length, about -^^ inch. 

 Valves of this Cyprid, both with and without the antero-ventral notch, occur 



