PISCES. 197 



XYSTRODUS (continued)— 



? egrertoni. J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i (1883), 

 p. 450, pi. Iv, f. 22, 23 : A. S. Woodward, Cat. Foss. Fishes 

 B. M.j pt. i, 1889, p. 194. 

 LOC. L. Carb. Limest. ; Bristol. [Teeth ; Brit. Mus.] 



parkeri, J. W. Davis, Geol. Mag. [3] vol. iii, 1886, p. 153, wood- 

 cuts 3, 4. 

 LOC. Carb. Limest. ; Chapel-en-le-Frith, Derbyshire. [Teeth ; 

 T. Parker Coll.] 



pulchellus, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i 

 (1883), p. 450, pi. Iv, f. 24. 

 LOC. Yoredale Rocks ; Wensleydale. [Tooth ; York Mus.] 



striatus (M'Coy), J. Morris and G. E. Roberts, Quart. Journ. 

 Geol. Soc, vol. xviii, 1862, p. 101 (name only) ; J. W. Davis, 

 Trans. Roy. Dublin Soc. [2] vol. i (1883), p. 448, pi. liv, f. 7- 

 10 ; O. St. John and A. H. Worthen, Pal. Illinois, vol. vii, 

 1883, p. 183 ; A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 

 1889, p. 193. 



Cochliodus striatus, L. Agassiz, Poiss. Foss., vol. iii (1843), 

 p. 174 (name only) ; J. Morris, Cat. Brit. Foss., 1854, p. 322 ; 

 F. M'Coy, Brit. Paleeoz. Foss. (1855), p. 624, pi. iii I, f. 27. 



Xystrodus angustns, J. Morris and G. E. Roberts (ex Agassiz, 

 MS.), Quart. Journ. Geol. Soc, vol. xviii, 1862, p. 101 (name 

 only) ; J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i 

 (1883), p. 449, pi. Iv, f. 19-21. 



LOC. L. Carb. Limest. ; Armagh, Northumberland, and Ayrshire. 

 U. Carb. Limest. ; Derbyshire. [Tooth ; Woodwardian Mus.] 



ZEXASPISf Lankester. 7>. Cephalaspis. 



saliveyi (Egerton), Lankester. v. Cephalaspis salweyi. 



ZYGOBATES, Agassiz. v. Rhinoptera. 



woodwardi, Agassiz. v. Rhinoptera woodwardi. 



MISCELLANEOUS PISCES. 



'Dentes Squali,' Brander, 1766. ?'. Lamna obliqua, Notidanus serra- 

 tissimus, and Odontaspis elegans. 



'Dorsal fin of fish allied to Silurits] Mantell, 1827. v. Hybodus 

 striatulus. 



'External defensive organ,' De la Beche, 1822. v. Myriacanthus 

 paradoxus. 



'Fish (? C/uztodon),' Winch, 181 7. v. Platysomus striatus. 



'Fish Spine,' Sowerby, 1825. v. Gyracanthus formosus. 



