CAEiNGID^. 
433 
40525-26. Vertebral centra and thickened clavicles and other 
bones ; Crag, Norfolk. Par chased, 1867. 
P.1981. Similar remains, including so-called “butterfly bone”; 
Crag, Norfolk. Egerton Coll. 
P. 8992, P. 8995-93, P. 8998. Similar remains; Norwich Crag, 
Southwold, Suffolk. Presented, hy Lady Prestwich, 1896. 
P. 9024. Two thickened clavicles ; Norwich Crag, Easton Bavent, 
Suffolk. Purchased, 1897. 
P. 7381. Thickened bone. Prestwicli Coll. 
P. 8704-07, P. 8736. Numerous similar thickened bones, including 
so-called “ butterfly bone ” figured by Newton, op. cit. 
1882, pi. xix. fig. 2 ; Eorest Bed Series, near Cromer, 
Norfolk. Savin Coll. 
Detached bones from the Lower Pliocene (Crag) of Antwerp, 
similarly thickened by hyperostosis, have been named Platax costatus, 
P. cuneus^ P. pileum^ and P. pliyseteroide^ by P. J. Van Beneden, 
Bull, xlcad. Roy. Belg. [3] vol. i. (1881), pp. 119-125, figs. 1-5. 
Extinct species of this genus have also been described as follows, 
but*are not represented in the Collection :— 
Platax papilio, L. Agassiz, Neues Jahrb. 1835, p. 292, and Poiss. 
Eoss. vol. iv. (1835-42), p. 245, pi. xlii. Chcetodoyi papilio, 
G. S. Volta, Ittiolit. Veronese (1796), p. cxiv. pi. xxvi. 
fig. 1, and H. D. de Blainville, Nouv. Diet. d’.Hist. Nat. 
vol. xxvii. (1818), p, 355,—Upper Eocene ; Monte Bolca, 
near Verona. [Imperfect fish ; Paris Museum of Natural 
History.] 
Platax pinnatiformis : Chcetodon ? pinnatiformis, H. D. de Blain¬ 
ville, loc. cit. 1818, p. 351. Platax, Cuvier «&; Valenciennes, 
Hist. Nat. Poiss. vol. vii. (1831), p. 239. Chcetodon pin- 
natus, G. S. Volta, op. cit. 1796, p. xiii. pi. iv. {errore). 
Platax altissimus, L. Agassiz, loc. cit. 1835, p. 291, and 
op. cit. vol. iv. (1839-42), p. 249, pi. xli.—-Ibid. [Ditto.] 
Platax plinianus, A. B. Massalongo, Specimen Photogr. Anim. 
Eoss. Agr. Veron. (1859), p. 29, pi. v.—Ibid. 
Platax subvespertilio : Chcetodon suhvespertilio, H. D. de .Blainville, 
loc. cit. 1818, p. 352. Chcetodon vespertilio, G. S. Volta, 
op. cit. 1796, p. XXV. pi. vi. {errore). Platax macro- 
pterygius, L. Agassiz, loc. cit. 1835, p. 291, and op. cit. 
vol. iv. (1839-42), p. 247, pi. xli a. —Ibid. [Ditto,] 
PAET 
