Electronic journal articles are available in portable document format (PDF). Abstracts and citations are in HTML format Imprint varies: 1878-1973, Leipzig, Akademische Verlagsgesellschaft Geest & Portig Publication suspended Nov. 1944-July 1950 Vols. 1-26 called also no. 1-708 Organ of Deutsche Zoologische Gesellschaft, July 1890-Oct. 1944 Vols. 137-144, no. 3/4 "reproduced and distributed in the public interest by the Alien Property Custodian." Founded and for many years ed. by J. V. Carus Vols. for 1891-95 include separately paged section "Litteratur," which in earlier vols. was published as part of text. Beginning 1896 continued as a separate publication under title Bibliographia zoologica, and v. 1-22 issued as supplement to Zoologischer Anzeiger Vols. for 1925-1939 have supplement: Verhandlungen der Deutschen Zoologischen Gesellschaft (1891); 1948-1949 have supplement: Verhandlungen der deutschen Zoologen; 1950-1970 have supplement: Verhandlungen der Deutschen Zoologischen Gesellschaft (1951)