325 
ox the fossil fishes of the upper lias of whitby. part iii. 
by arthur smith woodward, f.l.s., f.g.s., of the 
british museum (natural history). 
Plates XLVI.-XLVIII. 
Family SEMiONOTiDiE. 
Lepidotus semiserratus, Agassiz. 
Plates XLVI.-XLVIII. 
1822. Esox, Young and Bird, Geol. Surv. Yorkshire Coast, 
p. 261, pi. xvi., figs. 7, 8. 
1833. Lejjidotus latissimus, L. Agassiz, Poiss. Foss., vol. ii., 
pt. i., p. 8 (undefined). 
1833. Lepidotus mnbonatus, L. Agassiz, ibid., p. 8 (undefined). 
1837. Lepidotus semiserratus, L. Agassiz, ibid., p. 240, pis. 
xxix. a, b. 
1837. Lepidotus rugosus, L. Agassiz, ibid., p. 247, pi. xxxiii. a, 
fig. 1 {err ore). 
1849. Lejndotus semiserratus, W. C. Williamson, Phil. Trans., 
p. 441, pi. xl., figs. 3, 4. 
1895. „ „ A. S. Woodward, Catal. Foss. 
Fishes, B.M., pt. iii., p. 85. 
Ty2)e : Imperfect fishes ; Whitby and Scarborough Museums. 
The commonest ichthyolites of the Whitby Lias are remains of 
a species of Lepidotus now generally known under the name of 
Lepidotus semiserratus. The earliest notice of them appears to 
occur in Young and Bird's "Geological Survey of the Yorkshire 
Coast," where two specimens in the Whitby Museum are briefly 
described and unsatisfactorily figured. According to these authors, 
the fish represented by the fossils "seems to belong to the genus 
