[194] Yet none were so large as our largest living forms; their average size was very nearly that of Periplaneta americana.
[195] Die Klassen und Ordnungen der Arthropoden. Leipzig, 8vo, p. 292.
[196] A few elytra of Coleoptera are recently announced from the Silesian “culm.”
[197] Memoirs Bost. Soc. Nat. Hist., III., 23 seq. (1880).
[198] See a paper on mesozoic Cockroaches now printing in the Memoirs Bost. Soc. Nat. Hist., Vol. III., p. 439 seq.
[199] The wingless creature from the Carboniferous deposits of Saarbrücken, described by Goldenberg as a Cockroach, under the name of Polyzosterites granosus, appears to be a Crustacean.
[200] This includes all possible forms; our table shows but nine.