Author: Michaelsen, W.
Title: Die Oligochaeten des Naturhistorischen Museums in Hamburg I-II.
Description: Hamburg, Hamburgische Wissenschaftliche Anstalten, 1887. In two parts. Large 8vo. Half title, title page, 17; 11 pp., two lithographed plates. No wrappers. = Includes the description and illustration of new species. Very good, unmarked copies. Rare.

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