AUTHORITIES.--The following selection from the extremely extensive ichthyological literature which has appeared during the period 1880-1906 will supplement the bibliographical notice appended to section I. I. The General Subject: A. Günther, _Introduction to the Study of Fishes_ (Edinburgh, 1880); B. Dean, _Fishes Living and Fossil_ (New York, 1895); T. W. Bridge and G. A. Boulenger, "Fishes," _Cambridge Natural History_, vii. (1904); D. S. Jordan, _Guide to the Study of Fishes_ (2 vols., New York, 1905). II. Palaeontological: A. Fritsch, _Fauna der Gaskohle und der Kalksteine der Permformation Böhmens_ (vols, i.-iii., Prague, 1879-1894); K. A. von Zittel, _Handbuch der Paläontologie_, vol. iii. (Munich, 1887); A. Smith Woodward, _Catalogue of Fossil Fishes in the British Museum_, vols. i.-iii. (London, 1889-1895); A. Smith Woodward, _Outlines of Vertebrate Palaeontology for Students of Zoology_ (Cambridge, 1898); J. S. Newberry, "The Palaeozoic Fishes of North America," _Mon. U.S. Geol. Surv._ vol. xvi. (1889); J. V. Rohon, "Die obersilurischen Fische von Ösel, Thyestidae und Tremataspidae," _Mém. Ac. Imp. Sc. St-Pétersb._ xxxviii. (1892); O. Jaekel, _Die Selachier von Bolca, ein Beitrag zur Morphogenie der Wirbeltiere_ (Berlin, 1894); B. Dean, "Contributions to the Morphology of Cladoselache," _Journ. Morphol._ ix. (1894); R. H. Traquair, "The Asterolepidae," _Mon. Palaeont. Soc._ (1894-1904, in progress); "Report on Fossil Fishes collected by the Geological Survey of Scotland in the Silurian Rocks of the South of Scotland," _Trans. Roy. Soc. Edin._ xxxix. (1899); L. Dollo, "Sur la phylogénie des Dipneustes," _Bull. Soc. Belge Géol._ vol. ix. (1895); E. W. Claypole, "The Ancestry of the Upper Devonian Placoderms of Ohio," _Amer. Geol._ xvii. (1896); B. Dean, "Palaeontlogical Notes," _Mem. N.Y. Ac._ ii. (1901); A. Stewart and S. W. Williston, "Cretaceous Fishes of Kansas," _Univ. Geol. Surv. Kansas_, vi. (Topeka, 1901); A. S. Woodward, "Fossil Fishes of the English Chalk," _Palaeontogr. Soc._ (1902-1903, etc.); R. H. Traquair, "The Lower Devonian Fishes of Gemünden.," _Roy. Soc. Edin. Trans._ 40 (1903); W. J. and I. B. J. Sollas, "Account of the Devonian Fish Palaeospondylus," _Phil. Trans._ 196 (1903); C. T. Regan, "Phylogeny of the Teleostomi," _Ann. & Mag. N.H._ (7) 13 (1904); C. R. Eastman, "Fishes of Monte Bolca," _Bull. Mus. C.Z._ 46 (1904); "Structure and Relations of Mylostoma," _Op. cit._ 2 (1906); O. Abel, "Fossile Flugfische," _Jahrb. Geol. Reichsanst._ 56 (Wien, 1906); L. Hussakof. "Studies on the Arthrodira," _Mem. Amer. Mus. N.H._ ix. (1906). III. Faunistic (recent fishes): (A) EUROPE: E. Bade, _Die mitteleuropäischen Süsswasserfische_ (2 vols., Berlin, 1901-1902). GREAT BRITAIN: F. Day, _The Fishes of Great Britain and Ireland_ (2 vols., London, 1880-1884); J. T. Cunningham, _The Natural History of