﻿LEP1D0SIREN1D.E. 205 



generic characters with the so-called Ceratodus forsteri 1 of the 

 Queensland rivers. The extinct species may constitute a distinct 

 typo— e.g., perhaps that already named Gosfordia (p. 275); and, in 

 that case, the definition just stated will only apply to the recent fish , 

 for which a new generic name will be required. 



Fig. 41. 



Ceratodus forster I, Krefflt. — Recent, Queensland Rivers. 



Ceratodus latissimus, Agassiz. 



1811. " Trionyx'" J. Parkinson, Organic Remains, vol. iii. p. 2G9, 



pi. xviii. fig. 1. 

 1838. Ceratodus latissimus, L. Agassiz, Poiss. Foss. vol. iii. p. 131, 



pi. xx. figs. 8, 9. 

 1838. Ceratodus curvus, L. Agassiz, ibid. p. 131, pi. xx. fig. 10. 



[Dental plate ; Bristol Museum.] 

 1838. Ceratodus planus, L. Agassiz, ibid. p. 132, pi. xx. figs. 6, 7. 



[Ditto.] 

 1838. Ceratodus emarginatus, L. Agassiz, ibid. p. 133, pi. xx. figs. 11- 



13. [Ditto.] 

 1838. Ceratodus gibbus, L. Agassiz, ibid. p. 133, pi. xx. figs. 14, 15. 



[Ditto.] 

 1838. Ceratodus dcedaleus, L. Agassiz, ibid. p. 133, pi. xx. fig. 16. 

 1838. Ceratodus alius, L. Agassiz, ibid. p. 134, pi. xviii. figs. 1, 2, pi. xx. 



figs. 2-5. 

 1844. Ceratodus trapezoides, T. Plieninger, in Meyer & Plieninger's 



Pal. Wiirttem bergs, p. 87, pi. xii. fig. 50. [Stuttgart Museum.] 

 18o0. Ceratodus anglicus, E. Bey rich, Zeitschr. deutsch. geol. Gesell. 



vol. ii. p. 159. 

 1858. Ceratodus cloacinus, F. A. Quenstedt, Der Jura, p. 34, pi. ii. 



fig. 28. [Dental plate ; Tubingen University Museum.] 



1 G. Krefift, " Description of a gigantic Amphibian allied to the genus Lepido- 

 siren, from the Wide-Bay District, Queensland," Proc. Zool. Soc. 1870, p. 221, 

 woodc. 1-3. A. Giinther, " Description of Ceratodus, a genus of Ganoid Fishes, 

 recently discovered in Rivers of Queensland, Australia," Phil. Trans. 1871, 

 pp. 511-571, pis. xxx.-xlii. See also T. H. Huxley, Proc. Zool. Soc. 1876, 

 pp. 24-59, with tigs. 



