﻿T>42 ACTIN0PTERYU1I. 



and narrow, with large anterior inner keel, and a large, broad peg- 

 and-soeket articulation often extending nearly the entire width of 

 the scale ; scales dorsally and ventrally and towards the caudal 

 pedicle less deep in proportion to their breadth ; scales of upper 

 caudal lobe lozenge-shaped. Eidge-scales in advance of dorsal and 

 anal fins small, those of the upper caudal lobe very large. 



Platysomus gibbosus (Blainville). 

 [Plate XV. fig. 5.] 



1708. Rhombus diluvianus major et minor, J. J. Scheuchzer, Pisciuiu 



Querelas et Vindiciae, pi. iv. 

 1719. Rhcmbus diluvianus minor, P. Wolfart, Hist. Nat. Hassiaa inf. 



pi. xiii., pi. xiv. fig. 1. 

 1815. " Flat Fish," W. R. Clauny, Annals of Philosophy, vol. ?i. p. 115, 



with plate. 



1817. " Fish (? Chcetodon)^ N. J. Winch, Trans. Geol. Soc. vol. iv. p. 9, 

 pi. ii. 



1818. Stromateus gibbosus, H. D. de Blainville, Nouv. Diet. d'Hist. 

 Nat. vol. xxvii. p. 322. 



1818. Stromateus major, H. D. de Blainville, ibid. p. 322. 



1824. Stromateus knorrii, E. F. Germar, Leonhard's Mineral. Taschen- 



buch, p. 70, pi. ii. 

 1824. Stromateus angulatus, E. F. Germar, ibid. p. 71, pi. iii. fig. 2. 

 1829. " Fossil Fish," A. Sedgwick, Trans. Geol. Soc. [2] vol. iii. pi. xii. 



figs. 3, 4. 

 1833-35. Platysomus gibbosus, L. Agassiz, Poiss. Foss. vol. ii. pt. i. 



pp. 6, 164, pi. xv. 

 1833-35. Platysomus rhombus, L. Agassiz, ibid. pp. 6, 167, pi. xvi. 



[Paris Museum of Natural History.] 

 1833-35. Platysomus striatus, L. Agassiz, ibid. pp. 6, 168, pi. xvii. 



figs. 1-4 (includes Uropteryx striatus, Ag. MS.). [Museum of 



Newcastle-upon-Tyne.] 

 1833-35. Platysomus parvus, L. Agassiz, ibid. pp. 6, 170, pi. xviii. fig. 3. 

 1839. Platysomus gibbosus, G. A. Kurtze, Comment. Petrefact. Maus- 



feld. p. 22. 



1839. Platysomus rhombus, G. A. Kurtze, ibid. p. 24. 



1840. Platysomus gibbosus, E. F. Germar, Verstein. Mansfeld. Kup- 

 fersehief. p. 25. 



1840. Platysomus rhombus, E. F. Germar, ibid, p, 26. 



1842. Platysomus intermedins, G. von Miinster, Beitr. Petrefakt. pt. v. 



p. 43. [Palaaontological Museum, Munich.] 

 1850. Platysomus striatus, W. King, Permian Foss. (Palaeont. Soc), 



p. 231, pi. xxvii. fig. 1, pi. xxviii. fig. 1. 

 1855. Platysomus striatus, F. M'Coy, Brit. Palseoz. Foss. p. 614. 

 1861. Platysomus gibbosus, H. B. Geinitz, Dyas, p. 8, pi. vi. figs. 1-3. 

 1861. Platysomus intermedins, H. B. Geinitz, ibid. p. 9. 



