Contributions to North American Earthworms (Annelida).
$5.00
Tall Timbers Research Station, 1973.
- No. 6. Contributions to a Revision of the Earthworm Family Glossoscolecidae. I. Pontoscolex corethrurus (Muller, 1857). G.E. Gates.
- No. 7. Contributions to a Revision of the Earthworm Family Ocnerodrilidae. IX. What is Ocenerodrilus Occidentalis? G.E. Gates.
- No. 8. The Earthworm Genus Octolasion in America. G.E. Gates.