^{page 258 note 1} Fauna Śaræpontana Foss. 1877, heft 2, p. 7, t. 2, f. 34, a and b.

^{page 259 note 1} Synop. Carb. Foss. Ireland, p. 169, t. 4, f. 10.

^{page 259 note 2} “Catalogue,” etc., Trans. Tyneside Nat. Field Club, 1848, i. p. 258.Google Scholar

^{page 259 note 3} Trans. Geol. Soc. 1840, 2nd ser. v. t. 40, f. 1c.

^{page 260 note 1} Descrip. des Anim. Foss. p. 57, t. G. f. 6.

^{page 261 note 1} Geol. Report, Londonderry, p. 363.

^{page 261 note 2} Proc. Nat. Hist. Soc. Glasgow, iii. p. 329.Google Scholar

^{page 261 note 3} Mem. Geol. Survey Scot. No. 32. p. 145.

^{page 261 note 4} loc. cit. p. 328.

^{page 261 note 5} loc. cit. i. p. 102.

^{page 262 note 1} Pal. Ontario, 1874, i. p. 121, f. 54, b and c.

^{page 262 note 2} Pal. N. York. iii. p. 349; Atlas, t. 54, f. 18, a—e.Google Scholar

^{page 262 note 3} For localities in the West of Scetland, see Armstrong and Young's “Catalogue,” and Mem. Geol. Survey Scotland, No. 23.

^{page 263 note 1} Pal. Ontario, pt. 2, pp. 83 and 84, f. 44c.

^{page 263 note 2} Lethæa Rossica, i. p. 668, t. 34, f. 1, a–c, 2 a and b.

^{page 264 note 1} Dyas, t. 10, f. 10.

^{page 264 note 2} Petrefacta Germaniæ, t. 67 f. 1.

^{page 264 note 3} Pal. N. York, iii. t. 54, f. 18 a–e.

^{page 264 note 4} Synop. Carb. Lime. Foss. Ireland, t. 23, f. 29.

^{page 264 note 5} Fifteenth Ann. Report State Cab. Nat. Hist. N. York, 1862, p. 112.