[597]

Quart. J. Geol. Soc. l. 1894, pp. 72, 79.

[598]

See, however, Vine, Ann. Nat. Hist. ser. 5. xiv. 1884, pp. 87, 88, and P. Yorksh. Geol. Soc. xii. 1891, p. 74, for possible Palaeozoic Ctenostomes (Ascodictyon, Rhopalonaria, and Vinella).

[599]

Two vols. 8vo. London (Van Voorst), 1880.

[600]

8vo. London (Dulau), 1889.

[601]

One or two genera of Cheilostomata may be mistaken for Cyclostomata. In case of doubt, 7 et seq. must be worked through.