BELONOKH YjS CHIDiE. 
21 
1536-39. Five teeth; Laineck, near Bayreuth, Bavaria. 
Braun Coll. 
P. 853. Robust tooth ; Laineck. Egerton Coll. 
P. 854. Robust and coarsely ribbed tooth; Mattstedt, near Jena. 
Egerton Coll. 
Saurichthys acuminatus, Agassiz. 
1843. Saurichthys apicalis, J. E. Portlock (errore), Rep. Geol. London¬ 
derry, p. 470, pi. xiv. fig. 19. 
1844. Saurichthys acuminatus , L. Agassiz, Poiss. Foss. vol. ii. pt. ii. 
p. 86, pi. lv. a. figs. 1-5. 
1844. Saurichthus lonqidens, L. Agassiz, ibid. p. 87, pi. lv. a. figs. 17,18. 
[Tooth from Aust Cliff.] 
1844. Saurichthys acuminatus , Meyer & Plieninger, Pal. Wiirttembergs, 
p. 118, pi. xii. fig. 30. 
1844. Saurichthys mougeoti, Meyer & Plieninger, ibid. p. 118, pi. xii. 
figs. 31, 32. 
1844. Saurichthys breviconus, T. Plieninger, in Meyer & Plieninger, 
op. cit. p. 120, pi. xii. fig. 83. [Tooth; Stuttgart Museum.] 
1844. Saurichthys longiconus, T. Plieninger, ibid. p. 119, pi. xii. figs. 
90, 91 [Teeth ; Stuttgart Museum.] 
1844. Saurichthys listroconus, T. Plieninger, ibid. p. 120, pi. xii. fig. 81. 
[Tooth; Stuttgart Museum.] 
1858. Saurichthys acuminatus , F. A. Quenstedt, Der Jura, p. 35, pi. ii. 
figs. 42-51. 
1872. Saurichthys acuminatus and S. apicalis , R. Etheridge, Proc. 
Cardiff Naturalists’ Soc. vol. iii. pi. ii. figs. 5-10. 
1878. Saurichthys acuminatus , B. Lundgren, Minneskr. Kongl. Fysiogr. 
Sallsk. Lund, no. v. p. 31, pi. ii. figs. 60, 61. 
1888. Saurichthys acuminatus, K. A. von Zittel, Handb. Palseont. 
vol. iii. p. 266, fig. 272. 
1889. Saurichthys acuminatus , A. S. Woodward, Ann. Mag. Nat. 
Hist. [6] vol. iii. p. 301, pi. xiv. figs. 7, 8 ; and Trans. Leicester 
Lit. & Phil. Soc., n. s., vol. i. pt. xi. p, 20. 
This name may be provisionally retained for the teeth of 
Saurichthys from the Rhaetic horizons of N.W. Europe. They 
indicate a species with a robust dentition, the more typical teeth 
only differing from those named S. mougeoti in the relatively shorter 
basal portion and the prominence of the inferior rim of the apical 
gano-dentine. The extreme variations in the form of the teeth are 
pointed out by Quenstedt; and S. longidens is proved to be a 
synonym of S. acuminatus by an imperfect maxilla from Aust 
Cliff described in Ann. Mag. Nat. Hist. [6] vol. iii. p. 301, pi. xiv. 
figs. 7, 8. _ 
Form. Sf Loc. Rhaetic : N.W. Europe. 
