TRIGONIA. 83 



1835. Trigonia crenulata, LamarcJc. Ibid., ed. 2, vol. vi, p. 515. 



1810. — — L. Agassiz. Etudes crit. Moll. Foss. (Trigon.), p. 32, 



pi. vi, figs. 4 — 6. 

 1844. — — A.d'Orhtgmj. Pal. Fran?. Terr. Crct., vol. iii, p. 151, 



pi. ccxcv. 

 1848. Lyeiodon crenulatus, H. G. Bronn. Index Palseont., vol. i, p. 186, 

 1850. Trigonia crenulata, A. d'Orbigny. Prodr. de Pal., vol. ii, p. 161. 



1866. — — F. J. PlcM and G. Gampiclie. Foss. Terr. Cret. Ste. 



Croix (Mater. Pal. Suisse, ser. 4), p. 388. 



1867. — - — E. Gueranger. Album Pak'ont. de la Sarthe, p. 14, 



pi. xviii, figs. 3, 4. 

 ? 1878. — — 0. Frodii. Aus dem Orient., vol. ii, Geol. Beobacht. 



Libauou, p. 70. 

 1896. — —A. J. Jid-es-Browne and W. Hill. Quart. Journ. 



Geol. Soc, vol. lii, p. 154. 



Bem.nrhs. — I have seen only one English example of this. The snrface is not 

 quite perfectly preserved, so that the rugose character of the costte is not well seen. 

 Tijfje. — From the Cenomanian of Le Mans. 

 Distribution. — Cenomanian (Meyer's Bed 10) of Dunscombe. 



Trigonia alifoemis, ParJcinson, 1811. 



Additional Synonymy. 



1828. Trigonia al^pormis, Befrance. Diet. Sciences nat., vol. Iv, p. 297. 

 1850. — ALiFORMis, G. P. Beshoyes. Traite Element. Conch., vol. ii, 



p. 258, pi. xxxiii, fig. 3. 



— — H. Coquand. Mon. Aptien de I'Espagne, p. 134. 



— — F. J. Pictet and G. Camptche. Foss. Terr. Cret. Ste. 



Croix (Mate'r. Pal. Suisse, ser. 4), pp. 377, 

 386, pl. cxxviii, fig. 9. 



— — Lycett, p. 116, pl. xxv, figs. 3 — 6 ; pl. xxviii, fig. 5. 



— — B. B. Newton. Proc. Dorset Nat. Hist, and Autiq. 



Field Club, vol. xviii, p. 95, pl. iii, fig. 14. 



— ALiEFORMis, F. A. Bimier. Die Verstein. des nord-deutsch. 



Kreidegeb., p. 68. 



— — H. B. Geinitz. Die Verstein. von Kieslingswalda, 



p. 14, pl. ii, figs. 15, 16. 



— — A. E. Bevss. Die Verstein. der bolim. Kreide- 



format., pt. 2, p. 5. 



— — /. Mutter. Mon. Petref . der Aachen. Kreideformat., 



pt. 1, p. 15. 



— ALIFORMIS, B. Brescher. Zeitschr. d. deutsch. geol. Gesellsch., 



vol. XV, p. 348. 



? 1865. 



? 1866. 



1875. 



1897. 



Non 1841. 



— 1843. 



— ?1846. 



— 1847. 



— 1863. 



