Official lists and indexes of names and works in zoology - International Commission on Zoological Nomenclature (ICZN, 1987)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1878)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1882)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1887)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1889)

Ohio fossils - La Rocque, Aurèle, 1909 -1990 (Ohio Dept. of Natural Resources, Division of Geological Survey, 1955)

On intestinal respiration in annelids : with considerations on the origin and evolution of the vascular system in that group - Royal Society of Edinburgh. (Royal Society of Edinburgh?], 1913)

On Lepidoptera Heterocera from China, Japan, and Corea - Leech, John Henry, 1862 -1900 (1897)

On molecular and microscopic science - Somerville, Mary Fairfax, 1780 -1872 (J. Murray, 1869)

On Pourtalesia; a genus of Echinoidea - Lovén, Sven Ludvig, 1809 -1895 (P.A. Norstedt, 1883)

On some genera and species of the Temnopleuridæ - Bell, F. J. (Francis Jeffrey), 1855 -1924 (Zoological Society of London, 1880)

On some marine Invertebrata dredged or otherwise collected by Dr. G.M. Dawson, in 1885, on the coast of British Columbia; with a supplementary list of a few land and fresh water shells, fishes, birds, etc., from the same region - Whiteaves, Joseph Frederick, 1835 -1909 (Dawson brothers, 1887)

On the colouring matters of various animals, and especially of deep-sea forms dredged by H.M.S. Challenger - Moseley, H. N. (Henry Nottidge), 1844 -1891 (J. & A. Churchill, 1877)

On the deep and shallow water marine fauna of the Kerguelen Region of the Great Southern Ocean - Murray, John, Sir, 1841 -1914 (Robert Grant & Son, 1896)

On the experimental hybridization of echinoids - Shearer, Cresswell, 1874 - (University Press], 1914)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (Macmillan & Co, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (D. Appleton, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (Macmillan, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (D. Appleton and company, 1871)

On the physiology of digestion, respiration and excretion in echinoderms - Heyde, Henri Christiaan van der. (Gedrukt bij C. de Boer, jr, 1922)

On the physiology of digestion, respiration and excretion in echinoderms - Heyde, Henri Christiaan van der. (C. de Boer, 1922)

Ophiurans of the Philippine seas and adjacent waters - Clark, Austin Hobart, 1880 -1954 (Govt. print. off, 1922)

Ophiures de l'expédition du Siboga ... - Koehler, R. (René) 1860 -1931 (Librairie et imprimerie ci-devant E. J. Brill, 1904)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1955)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1945)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1944)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1954)