Author: Hummel, K.
Title: Die fossilen Weichschildkröten (Trionychia). Eine morphologisch-systematische und stammesgeschichtliche Studie,
Description: Leipzig, Gustav Fischer, 1929. Large 4to (31.1 x 23.8 cm). 132 pp., 34 text illustrations. Original printed wrappers. = Although published in a palaeontological journal this monographs deals a lot with extant species of turtles with a soft shell. Karl Hummel (1889-1945) was a German palaeontologist and herpetologist. Rare. there are no other copies on the internet. This is Geogische und Palaeontologische Abhandlungen Neue Folge 16, Heft 5. Uncut. ends of spine a bit frayed, top outer corner bumped, otherwise a very good, clean and unmarked copy.

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