THE AXNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SEVENTH SERIES.] 

 No. 5. MAY 1898. 



LV. — On the Fossil Cypridinidse and some Allied Ostracoda. 

 By Professor T. Rupert Jones, F.R.S. &c. 



[Plate XVII.] 



The generic name Ci/pridina, proposed by Professor Henry 

 Milne-Edwards in 1838^, and first published by him in 1840, 

 was adopted by paleontologists more than half a century agof 

 as a modern representative of some small Bivalve Crustaceans 

 found fossil in Devonian and Carboniferous strata, and others 

 in the Cretaceous and Tertiary formations. The figure given 

 by H. Milne-Edwards in his 'Hist. Nat. des Crustacds,' 

 vol. iii. (1840) p. 410, pi. xxxvi. figs. 5-9, unfortunately had 

 no indication of the antero-ventral notch. By a letter, how- 

 ever, dated January 11th, 1856, he definitely informed me 

 that this notch (" I'echancruse du bord antero-inferieure") 

 was present, but had been inadvertently omitted in the 

 drawin''- 1. Owing to this omission of a characteristic feature 



* Hist. Nat. Anim. s. Vert. edit. 2, vol. v. p. 178. 



t By Be Koniuck in 1841; SaTidberger in 1845; subsequently by 

 Eichter, Rolle, F. A. Ronier, Ferd. Romer, Ludwig, vou Keyserling, von 

 Eichwald, von Reuss, Bosquet, and others. „ t-. , , „ 



t See "Monograph of the Tertiary Entomostraca of England, 

 Paleeont. Soc. 1856, p. 9 ; and " Monogr. British Fossil Bivalved Ento- 

 mostraca from the Carboniferous Formations," Pal. Soc. 1874, p. 11. 



Ann. & Mag. N. Hist. Ser. 7. Vol. i. 26 



