Taxonomic studies on the hydras of North America : III. Rediscovery of Hydra carnea L. Agassiz (1850) with a description of its characters /
Hyman, Libbie H.
Taxonomic studies on the hydras of North America : III. Rediscovery of Hydra carnea L. Agassiz (1850) with a description of its characters / by Libbie H. Hyman - [S.l. : s.n.], 1931 - 20-27 p. : ill. ; 27 cm. - Transactions of the American Microscopical Society ; 50 .
Tav. di studio SZN
Taxonomic studies on the hydras of North America : III. Rediscovery of Hydra carnea L. Agassiz (1850) with a description of its characters / by Libbie H. Hyman - [S.l. : s.n.], 1931 - 20-27 p. : ill. ; 27 cm. - Transactions of the American Microscopical Society ; 50 .
Tav. di studio SZN