. Cave vertebrates of America; a study in degenerative evolution. Cave animals; Heteropygii. EIGENMANN 03 > QJ 2 § g o in (i C w 3 « 8 ? • 0) a. a o o n "o ho O o o w s o 31. O 3 O c era ly- cra k .- *. r* ^bk I, 1. >. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Eigenmann, Carl H. , 1863-1927. Washington, D. C. , Carnegie Institution of Washington

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