Two new varieties of earthworms with a key to described species in Illinois
By: by Frank Smith.
Contributors: Illinois State Laboratory of Natural History.
Series: Bulletin of the Illinois State Laboratory of Natural History -- v. 10, art. 8
Publisher: Illinois State Laboratory of Natural History
Published: 1915
Place of publication: Urbana, Ill
Language: eng
Number of pages: 559
Subjects: Haplotaxida -- Illinois.; Earthworms -- Illinois.
Notes: Includes bibliographical references.