A. S. Woodward — Belgian Neozoic Fish-teeth. 107 



the lateral denticles ; and there cannot be much doubt that most of 

 these fossils are i-eferable to the upper jaw of Lamna macrota. 



Ginglymostoma thielense (Winkler). 



1874-76. Plicodus thielensis, T. C. Winkler, Archiv. Mus. Teyler, vol. iii. p. 301, 



pi. vii. fig. 5, and ibid. vol. iv. p. 20. 

 1886. GingU/mostoma thielense, F. NoetUng, Sitzungsb. Ges. naturf. Freunde 



Berlin, p. 14, figs. 2, 3. 



The teeth described under this specific name exhibit all the 

 characters of Ginglymostoma, as already noted by Noetliug. 



Scymnus trituratvs (Winkler). 



1874. Corax trituratus, T. C. Winkler, Ai-chiv. Mus. Teyler, vol. iv. p. 27, pi. ii. 



fig. 13. 

 1879. Scymnus trituratus, J. Probst, Wiirtt. Jahresb. vol. xxxv. p. 176. 

 1886. Scymnus trituratus, F. Noetling, Sitzungsb. Ges. natnrf. Frennde Berlin, 



p. 17. 



Some very small Bruxellian teeth are indistinguishable in shape 

 from those of the existing Scymniis, and may thus be regarded as 

 pertaining either to this genus or to a closely allied form at present 

 undetermined. 



Squatina, sp. 



A. tooth of Squatina occurs in M. Houzeau's collection, but cannot 

 be regarded as sufficient for specific determination. It is less robust 

 than the teeth of the same genus from the Heersian Beds,^ and 

 similarly difters from a Belgian Pliocene tooth described by Le Hon.^ 



Coelorliynchus rectus,. Agassiz. 



1784. "Petrification inconnue," Burtin, Oryctogr. Bruxelles, pi. vi. figs. a-e. 

 1844. CcRlorhynchus recttcs, L. Agassiz, Poiss. Foss. vol. v. pt. i. p. 92 (name only). 

 1850. Ccelorhynchus, F. Dixon, Foss. Sussex, p. 112, pi. x. figs. 14-17, pi. xi. 



fig. 26. 

 1871. Ccelorhynchus rectus and C. Burtini, H. Le Hon, Prelim. Mem. Poiss. Tert. 



Belg. p. 14 ; also P. J. Van Beneden, Bidl. Acad. Eoy. Belg. [2], 



vol. xxxi. p. 500. 



No specific differences between C. Burtini and the typical C. rectus 

 have been pointed out, and they may be regarded as pertaining to 

 one and the same form. 



TELEOSTOML 



Lepidosteus, sp. 



1874. TricMurides sagittidens, T. C. Winkler, Archiv. Mus. Teyler, vol. iv. p. 31, 



pi. ii. figs. 22, 23. 

 1883. " iej»2c?osfe?.<s-verwandter Ganoid," Hilgendorf, Zeitschr. deutsch. geol. Ges. 



vol. xxxv. p. 670. 



As already recognized by Hilgendorf, the teeth described by 

 Winkler under the name of TricMurides are indistinguishable from 

 those of Lepidosteus. Numerous teeth, head-bones, scales, and 



^ Trigonodus primus, T. C. Winkler, Archiv. Mus. Teyler, vol. iv. (1876), p. 14, 

 pi. i. figs. 18 21. 



2 Scaldia biforis, H. Le Hon, Prelim. Mem. Poiss. Tert. Belg. (1871), p. 7, 

 ■with figs. 



