A Monograph of the Existing Crinoids, Vol. 1: The Comatulids (Classic Reprint) - Hardcover

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Excerpt from A Monograph of the Existing Crinoids, Vol. 1: The Comatulids

Parts 3, 4, and 5 of Volume 1, Bulletin 82, include the systematic discussion of the species and higher groups of living comatulids, or unstalked crinoids. Part 3, published on March 21, 1931, included the account of the superfamily Comasterida. Part 4a, published on August 5, 1941, included the account of the superfamily Maria metrida, with the exception of the family Colobometridae. Part 4b, the present part, is a continuation of Part 4a and contains the account of the family Colobometridae of the superfamily Mariametrida, and of the families Tr0piometridae, Calometridae, Ptilometridae, and Asterometridae of the superfamily Tropiometrida.

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