THE ANNALS AND MAGAZINE OF NATURAL HISTORY, [SEVENTH SERIES.J No. 14. FEBRUARY 1899. XVI. — On the Origin of the Fauna of Celebes. By Professor Dr. Max Weber. [The following notes * are part of an article by Dr. Max Weber entitled " Die Susswasserfische des Indischen Archipels," which appeared in his ' Zoologische Ergebnisse einer Reise in Niederlandisch Ost-Indien,' vol. iii. 1894. In the first and special portion of the article complete lists of the freshwater fishes of Celebes and other islands are given, which are not reproduced here.] In dealing more closely with some questions of a general character, our starting-point is the opinion so clearly expressed by Dr. Gunther f :— " The freshwater fishes being limited to the river-or lake-systems which they inhabit, and being less exposed to the disturbance affecting the terrestrial animals, are singularly adapted for the elucidation of the original geographical distribution of animals of the present creation." * Translated by Miss Ethel S. Barton. t Cat. Fish, vii'i. p. ix. Ann. & Mag. N. Hist. Ser. 7. Vol. iii. 9