TY - CHAP T1 - Chapter VII – Phylum Cnidaria. V. Class Scyphozoa T2 - The Invertebrates: Protozoa through Ctenophora Y1 - 1940 A1 - Hyman, Libbie Henrietta SP - 497 EP - 538 JF - The Invertebrates: Protozoa through Ctenophora T3 - The Invertebrates PB - McGraw-Hill Book Company, Inc CY - New York ER -