Recent and Fossil Foraminifcra. 687 



Pulvinulina repanda var. elegans (d'Orbigny) Parker and Jones, 1865, Phil. 



Trans., vol. civ. p. 397, pi. xvi. figs. 44-6. 

 Pulvinulina elegans (d'Orbigny) Brady, 1884, Foram. ' Challenger,' p. 69 J, 



pi. cv. figs. 3-6. 

 Pulvinulina partschiana (d'Oibigny). Ibid. 

 Pulvinulina elegans (d'Orbigny) Brady, 1887, Synopsis British Eecent Forami- 



nifera. 

 Ditto. (d'Orbigny) Goes, 1894, Arctic and Scandinavian Foraminifera, 



p. 97, pi. xvi. fig. 808. 



Fossil specimens, fairly well developed and typical, probably 

 from a clay. The species and its ally P. partschiana have been 

 recorded from various deposits ranging back as far as the Upper 

 Trias. 



199. Pulvinulina semimarginata d'Orbigny sp. 

 Plate XX. fig. 3 a, b, c. 



Turbinulina semimarginata d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 276, 



No. 53. " Planches inedites," pi. ix. fig. 53. 

 Rosalina semimarginata (d'Orbigny) 1850, Prodrome de Palseontologie, p. 407. 

 Rotalina semimarginata (d'Orbigny) Terquem, 1882, Mem. Soc. Geol. France, 



ser. 3, vol. ii. No. 3, p. 56, pi. iii. figs. 12-14. 



One fossil specimen, in excellent preservation. There can be 

 no doubt as to the identity of the specimen which we figure 

 with the form described and figured by Terquem as above, but 

 as to the identity of Terquem's specimens with d'Orbigny's species 

 we can say nothing, as this was one of the forms of which d'Orbigny 

 published no figure, and his description (" espece rugeuse, ovale, 

 bordee interieurement ") is too vague to have any va]ue. Terquem, 

 however, appears to have had access to d'Orbigny's figure in the 

 " Planches inedites," and gives a complete series of drawings of 

 his own specimens, which were from the Eocene of Vaudancourt 

 and Septenil, near Paris. Terquem's figures must therefore be 

 accepted as the foundation of our knowledge of this species. There 

 are nine in all, representing different views of three individuals, 

 which differ to some extent in size, thickness, and markings, but 

 which may probably be regarded as mere variations within the 

 species. Terquem gives a separate description of each of these 

 specimens, and as his paper is not readily accessible, we deem it 

 advisable to give here reproductions of his figures, and a precis of 

 his descriptions. 



Fig. 12 a, b, c. — Shell oval, compressed, smooth, of rounded cir- 

 cumference, sub-convex above, compressed below, the two surfaces 

 formed of a spiral whorl, the earlier chambers indistinct, the four 

 later ones slightly prominent, encroaching on the inferior surface, 

 and bounded by a furrow not in conformity with the chambers of 

 this surface. The edge of the terminal chamber is prominent, the 

 aperture a slit, close against the spiral. (Vaudancourt.) 



