[592]

Alex. Agassiz, Proc. Amer. Acad. Arts and Sc. xiii. 1878, p. 65; Mark, Bull. Mus. Comp. Zool. Harvard, xix. 1890, p. 1.

[593]

Mark, op. cit. p. 3.

[594]

Pander, Ueber die Ctenodipterinen des Devonischen Systems, St. Petersb. 1858.

[595]

Traquair, Ann. Mag. Nat. Hist. (5), ii. 1878, p. 1; Geol. Mag. (3), vi. 1889, p. 97; Smith Woodward, Brit. Mus. Cat. Foss. Fishes, ii. 1891, p. 235 et seq.

[596]

Traquair, Journ. Roy. Geol. Soc. Ireland (N.S.), iii. 1873, p. 41; Proc. Roy. Soc. Edinb. xvii. 1890, p. 393.