CARCFTARIIDiE. 
453 
Galeus by C. Hasse, Natiirl. Syst. Elasmobr., Besond. Theil (1882), 
p. 266, pi. xxxviii. figs. 8-18. 
Teeth of the existing Galeus cams , Linn., from the Forest Bed of ^ ITvJb. Tit". 
Norfolk, are described by E. T. Newton, Yertebrata of the Forest *2^. 
Bed Series (Mem. Geol. Surv. 1882), p. 130, pi. xix. fig. 7, and the 0& ( j'),l». too*, 
striking similarity between these teeth and those of Galeus uffinis,/y(-fX-fy, 
Probst, is remarked upon. 
Genus SPHYENA, Rafinesque. 
[Ind. Ittiol. Siciliana, 1810, p. 60.] 
Syn. Cestrorhinus, H. D. de Blainville, Bull. Soc. Philom. 1816, p. 121. 
Zygcena, G. Cuvier, Regne Animal, vol. ii. 1817, p. 127. 
Anterior portion of the head broad, flattened and laterally elon¬ 
gated ; eyes situated at the extremities of the lobes. Nostrils 
situated on the front edge*of the hShd; mouth crescent-shaped; 
spiracles absent. A pit at the commencement of the caudal fin; 
the latter with a single notch. Teeth of both jaws similar, oblique, 
■with a posterior notch, and margins smooth or serrated. 
When found detached it is impossible to distinguish the teeth of 
this genus with certainty from those of Carcharias. The following 
species, however, is recognized. 
gphyrna prisca ? Agassiz. ^ * 
1843. Sphyrna prisca , L. Agassiz, Poiss. Foss. vol. iii. p. 234, pi. xxvi. a. 
figs. 35—50. ^ 3 q, t nzv .^^ , 
1844. Sphyrna prisca, P. M. Pedroni, Actes Soc. Linn. Bordeaux, 
vol. xiii. p. 284, pi. i. figs. 15, 16. 
1846. Spliyrna serrata, G. von Miinster, Beitr. Petrefakt. vii. p. 20, 
pi. ii. fig. 18. 
1850. Sphyrna prisca, O. G. Costa, Paleont. Regno Napoli, pt. i. p. 112, 
pi. ix. fig. 7. 
(?) 1857. Sphyrna p’isca, G. G. Gemmellaro, Atti Accad. Gioenia Sci. 
Nat. [2] vol. xiii. p. 295, pi. i. a. fig. 5 a, pi. vi. a. fig. 3 a. 
(?) 1858. Sphyrna rameti , M. Rouault, Comptes Rendus, vol. xlvii. 
p. 101. 
(?) 1878. Sphyrna serrata , J. Probst, Wiirtt. Jakresh. vol. xxxiv. 
p. 151, pi. i. fig. 45.r<* 
1879. Sphyrna prisca, F. Bassani, Atti Soc. Veneto-Trent. Sci. Nat. 
vol. vi. p. 65. 
1882. Sphyrna prisca, H. E. Sauvage, Mem. Soc. Sci. Nat. Saone-et- 
Loire, vol. iv. p. 52. 
1884. Sphyrna prisca, E. Nicolis, Mem. Accad. Agricolt. Arti e Comm. 
Yerona, pi. ii. fig. 7. 
1887. Sphyrna serrata, K. A. von Zittel, Handb. Palasont. vol. iii. 
p. 86, fig. 93 
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