Some new Illinois Enchytraeidæ
By: by Frank Smith and Paul S. Welch.
Contributors: Welch, Paul S. 1882-1959.; Illinois State Laboratory of Natural History.
Series: Bulletin of the Illinois State Laboratory of Natural History -- v. 9, art. 12
Publisher: Illinois State Laboratory of Natural History
Published: 1913
Place of publication: Urbana, Ill
Language: eng
Number of pages: 636
Subjects: Enchytraeidae.
Notes: "Contributions from the Zoological laboratory, University of Illinois ... no. 22."

Includes bibliographical references.