PISCES. 195 



TRISTVCKZUS, L. Agassiz, Poiss. Foss., vol. iii (1837), p. 21 ; 

 R. H. Traquair, Geol. Mag. [3] vol. v, 1888, p. 83. 

 Ptychacanthus, L. Agassiz, Poiss. Foss., vol. iii (1837), 

 p. 22. 



arcuatus, L. Agassiz, ibid. (1837), p. 22, pi. i a, f. 9-1 1 ; J. Morris, 

 Cat. Brit. Foss., 1854, p. 346 ; T. Stock, Ann. Mag. Nat. 

 Hist. [5] vol. xii, 1883, p. 177, pi. vii ; R. H. Traquair, Geol. 

 Mag. [3] vol. v, 1888, p. 83, and ibid., vol. vi, 1889, p. 27 ; 

 A. S. Woodward, Cat. Foss. Fishes B. M., pt. i, 1889, 

 p. 245. 

 Ptychacanthus sublcevis, L. Agassiz, Poiss. Foss., vol. iii (1837), 

 p. 23, pi. v, f. 1-3 ; J. Morris, Cat. Brit. Foss., 1854, p. 341. 

 [Spine ; olim Jameson Coll.] 



LOC. Calcif. Sandst. ; S. Scotland. [Spine ; Anderson's College, 

 Glasgow.] T. 



fimbriatiis, Stock, v. Harpacanthus fimbriatus. 



minor, J. E. Portlock, Rep. Geol. Londonderry, 1843, p. 464, 

 pi. xiv, f. 6; J. Morris, Cat. Brit. Foss., 1854, p. 346. 

 [— ? Sphcnacanthus or Nop/onchusJ] 

 LOC. Carboniferous ; Fermanagh. [Spine ; Mus. Pract. Geol.] 



UR^SUS, L. Agassiz, Xeues Jahrb., 1832, p. 142. = Caturus and 

 Pachycormus. 

 gracilis, Agassiz. v. Pachycormus gracilis. 



URONEMUS, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), P- 178 ; 

 R. H. Traquair, Journ. Roy. Geol. Soc. Ireland, n.s., vol. iii 

 (1873), P- 4i- 

 lobatus, L. Agassiz, Poiss. Foss., vol. ii, pt. ii (1843), p. 178 ; 

 R. H. Traquair, Journ. Roy. Geol. Soc. Ireland, n.s., vol. iii 

 ( ! 873), p- 41, pi- v ; J. Morris, Cat. Brit. Foss., 1854, 

 p. 346. 

 Phaneropleuron elegans, R. H. Traquair, Geol. Mag., vol. \iii, 

 1871, p. 534. [Name withdrawn, Journ. Roy. Geol. Soc. 

 Ireland, n.s., vol. iii (1873), p. 47.] 

 LOC. Calcif. Sandst.; Burdiehouse, near Edinburgh. [Imperfect 

 fish ; Brit. Mus.] T. 



? raag-nus, R. H. Traquair, Geol. Mag. [2] vol. i, 1874, p. 554. 



LOC. Coal-Meas. (Blackband Ironstone) ; Airdrie, Lanarkshire. 

 [Tail ; Brit. Mus.] 



VENUSTODUS, O. St. John and A. H. Worthen, Pal. Illinois, vol. 

 vi, 1875, P- 344- 

 ? clavatus (Davis), A. S. Woodward, Cat. Foss. Fishes B. M., 

 pt. i, 1889, p. 225. 

 Harfiacodus clavatus, J. W. Davis, Trans. Roy. Dublin Soc. [2] 



vol. i (1883), p. 515, pi. lxi, f. 20. 

 LOC. L. Carb. Limest. ; Armagh. [Tooth ; Brit. Mus.] 



