A summary of the life history and distribution of the spring cavefish, Chologaster agassizi, Putnam, with population estimates for the species in southern Illinois
By: Philip W. Smith, Norbert M. Welch.
Contributors: Welch, Norbert M.; Illinois. Natural History Survey Division
Series: Biological notes -- 131
Publisher: Illinois Natural History Survey
Published: 1978
Place of publication: Champaign, Ill
Language: eng
Subjects: Amblyopsidae
Notes: Cover title.

Includes bibliographical references (p. 8).