42 ONYCHIOPSIS. 



1848. ? Sphenopteris SilUmcmi, Bronn, Index Pal. Nomenol. p. 1170. 

 1850. Sphenopteris Mantelli, Unger, Gen. spec, plant, foss. p. 108. 

 1851-52. Sphenopteris Mantelli, Bronn, Leth. geog. Tol. ii. p. 49, 



pi. xxTiii. fig. 4a}. 

 1852. Sphenopteris Mantelli, Ettingshausen, Abli. t.-k. geol. Eeichs. p. 14, 



pi. IT. figs. 3 and 4. 

 1854. Sphenopteris Mantelli, Morris, Brit. foss. p. 21. 

 ? Sphenopteris Sillimani, Morris, loo. cit. p. 21. 

 1865. Miorolepia Mantelli, Ettingshausen, Famkri;. Jetztwelt, p. 216. 

 1867. Sphenopteris antipodum, Tate, Quart. Journ. Geol. Soc. vol. xxiii. 



p. 139. 

 1869. Sphenopteris {Savallioides) Mantelli, ScMmper, Trait, pal. veg. toI. i. 



p. 393. 

 1871. Sphenopteris Mantelli, Schenk, Palseontographica, vol. xix. p. 208, 



pi. xxiii. figs. 1-8. 

 1871. Sphenolepis Kurriana, Schenk, pi. xxv. fig. 6, loc. cit. p. 243, pi. 



xxxviii. fig. 2. 

 1871. Sphenopteris Gopperti, Schenk (in part), he. cit. pi. xxv. figs. 3 and 3ffi. 



(Not the other figures of this species.) 



1874. Sphenopteris Mantelli, Schimper, Trait, pal. veg. vol. iii. p. 469. 



1875. Sphenopteris Mantelli, Schenk, Palajontographica, vol. xxiii. p. 158, 



pi. xxviii. fig. 12. 

 1878. Sphenopteris Roemeri, Dupout, Bull. Ac. E. Belg. vol. xlvi. ser. ii. 



p. 396. 

 1881. Sphenopteris Mantelli, Heer, Secc. Trah. Geol. Portugal, 1881, p. 12, 



pi. xi. figs. 1-5, pi. xii. figs. 2i and ibb. 

 1881. Sphenopteris vaUensis, Heer, loe. cit. p. 14, pi. xv. figs. 9, 10 and 13, 



pi. xvi. fig. 54. (The other figures more doubtful.) 

 1883. ? Trichomanites laxum, Tenison- Woods, Proc. Linn. Soc. N. S. 



Wales, vol. viii. pt. i. p. 95, pi. x. fig. 2. 

 1883. ? Trichomanites spinifolium, Tenison-Woods, ibid. p. 95, pi. iii. fig. 7. 



1889. Sphenopteris Mantelli, Fontaine, Potomac Flora, p. 91, pi. 1. figs. 



1 and 2. 



1890. Sphenopteris Mantelli, Nathorst, Denksch. k. Ak. Wiss. math.-nat. Cl. 



vol. Ivii. p. 65 (referred to Onychium). 



1891. Sphenopteris Mantelli, Saporta, Compt. Eend. cxiii. p. 250. 



1891. Sphenopteris Mantelli, Engelhardt, Abh. Isis. Dresden, p. 79. 



1892. f Trichomanites laxum. Jack and Etheridge, Geol. Pal. Queensland 



and Xew Guinea, p. 316, pi. xviii. fig. 9. 



Type. Portions of pinnae. 



The type specimen was originally figured by Stokes and "Webb 

 in an anonymous paper which appeared in the Transactions of the 

 Geological Society for 1824.' These authors hesitated to pronounce 

 a decided opinion on the affinity of the plant, but recognized that 



1 Trans. Geol. Soc. ser. ii. vol. i. p. 421. 



