PROF. T. E. JONES ON NT7MMULITES ELEGANS 



1883. In the posthumous portion of our deceased friend Dr. 

 Phil. De la Harpe's " Etude des Nummulites de la Suisse et Revision 

 des Especes Eocenes des Genres Nummulites et Assilines," partie 

 troisieme (Mem. Soc. Paleontol. Suisse, vol. x.), 1883, p. 169, we 

 have the synonymy of the little Nummulite under notice thus 

 given : — 



Nummttlites Wemmelensis, De la Harpe and Yanden Broeck, 

 pi. xi. figs. 52-70. (Yar. Prestwichii, rigs. 65-70.) 



1822. Nummulites lenticula (pars), Defrance, Diet. Sc. Nat. vol. 

 xxxv. p. 226. 



1837 (?). Id. (pars), Galeotti, Mem. constit. geogn. Brabant ; 

 Mem. Acad. Belg. vol. xii. 



1837. N. elegans (pars), Galeotti, op. cit. 



1853. N. planulata, d'Orb. var. a. minor, D'Arch. et Haime, 

 Monogr. Numm. p. 143, pi. 9. f. 10, a, b, c. 



1861. Id. Lam. sp., var. Prestwichiana, H. Jones, Quart. Journ. 

 Geol. Soc. vol. xviii. p. 93. 



At p. 171, De la Harpe, under " Nummulites planulata, Lamarck 

 sp." (pi. vii. figs. 1-11), places: — 



" 1829. Nummularia elegans (pars), Sowerby, Mineral Conchology, 

 vol. vi. p. 76, pi. 548. figs. 6, 7, 8 (non figs. 9, 10, 11)." 



Excepting no. 10, these (Sowerby's " fig. 2 ") are in my opinion 

 definitely N. -planulatus (Lam.). 



At p. 175, under " Nummulites elegans, Sowerby " (pi. vii. 

 12-23), De la Harpe places : — 



" 1829. Nummularia elegans (pars), Sow. Min. Conch, vol. vi. 

 p. 76, pi. 538. figs. 9, 10, 11 (non 6, 7, 8)." These also, ex- 

 cepting no. 10, are N. planulatus ; De la Harpe's figures 12-20 are 

 like young planulatus with large central chamber, and externally 

 like some (nos. 7 and 8 of Sowerby's " fig. 2") which accompany 

 other planulati of larger growth. His figs. 21-23 represent a very 

 thin form (" depressa 



The English Nummulites. 

 I. Nemji"liies elegans, Sowerby. PI. XI. figs. 1-9. 



The following synonymy of N. elegans, Sowerby, is here offered 

 as being in accordance with what we have noted above : — 



1826. Nummularia elegans (part.), Sowerby, Min. Conch, vol. vi. 

 p. 76, pi. 538. fig. 2 (part, namely, no. 10). 



1837. Nummvlina elegans (part.), nobis et Sowerby, Galeotti, 

 Mem. constit. Geogn. Brabant, p. 141. 



1846. Nummulinu elegans, Prestwich *, Quart. Journ. Geol. Soc. 

 vol. ii. p. 257. 



1848. Lenticulites planulata (?), Bronn, Index Palseont. vol. i. 

 p. 628. 



* At p. 254 N. variolarius appears to have been misnamed elegans. 



