BERENICE A. 89 



DIAGNOSIS : 



Zoarium a circular disc, very thin. May have a lacuna around 

 the primitive zocecia. 



Zooecia long and cylindrical, separated from one another ; visible 

 throughout their length. Slight transverse striation. 



Peristomes well raised. 



Formula. p, c, I, r = 2, 1, 2, dO. 



DISTRIBUTION. 



FOREIGN : Mid. Portlandian : Boulogne. 



Affinities. This species was so very inadequately described by 

 D'Orbigny that it is only on M. Sauvage's description that it can 

 be retained. His figures are clear. The species is most nearly 

 allied to B. allaudi (Sauv.), from which it differs in that the 

 zocecia are separated, and the peristomes more raised. 



This species is not represented in the British Museum Collection. 



The name was given by Heuss in 1854 to a form which he had 

 previously described as D. gracilis (M. Edw.), he having over- 

 looked the twice prior use of that name by D'Orbigny. In spite 

 of the shortness of the latter's diagnosis, the mention of the locality 

 renders it recognizable. Reuss' use of the name cannot therefore 

 be continued. 



10. Berenicea diluviana, Lamouroux, 1821. 



SYNONYMY : 



Berenicea diluviana, Lamouroux, 1821, Expos. Meth. p. 81, pi. Ixxx. figs. 3, 4. 

 ,, Conybeare and Phillips, 1822, Geol. England and Wales, 



p. 214. 



,, ,, Lamouroux, 1824, Encycl. Meth. Zooph. p. 140. 



Bronn, 1825, Pflanzenth. p. 43, pi. vii. fig. 4. 



,, ,, Defrance, 1826, Diet. Sci. nat. t. xlii. p. 391. 



,, Fleming, 182S, Brit. Anim. p. 533. 



,, Blainville, 1830, Diet. Sci. nat. t. Ix. p. 410, pi. xliii. fig. 4. 



,, Lonsdale, 1832, Oolitic Bath.: Trans. Geol. Soc. ser. 2, 



vol. iii. p. 273. 



,, Blainville, 1834, Man. d'Act. p. 445, pi. Ixv. fig. 4. 



,, M. Edwards, 1836, in Lamarck, Hist. Nat. Anim. s. Vert. 



ed. 2, t. ii. p. 264. 

 ,, ,, Bronn, 1837, Leth. Geogn. ed. 2, p. 240, pi. xvi. fig. 8. 



