A case of convergence
Subtitle: Typhlichthys subterraneus
Publisher: MacMillan Co.
Published: 1899
Place of publication: New York
Language: eng
Number of pages: 282
Notes: Reprint from Science, A weekly series devoted to the Advancement of Science. New Series. vol. IX, no. 217, Feb. 1899.

Contribs. from the Zoological Dept. of Indiana Univy., no. 17. 1899.