The invertebrates. - Hyman, Libbie Henrietta, 1888- (New York, McGraw-Hill, 1940)
[v. 1.] Protozoa through Ctenophora.--v. 2. Platyhelminthes and Rhyn chocoela, the acoelomate Bilateria.--v. 3. Acanthocephala, Aschelminthe s, and Entoprocta, the pseudocoelomate Bilateria.--v. 4. Echinodermata, the coelomate Bilateria.--v. 5. Smaller coelomate groups.--v. 6. Mollu sca I.
Vol. 6- has series: McGraw-Hill in the invertebrates.
Vol. 4- lack edition statement.
Includes bibliographical references
Keywords: Invertebrates