TL;DR: Two hundred and fifteen species in 127 genera and 47 families of inland water fishes are reported from Kampuchea, with Explanations of two particular zoogeographic patterns are presented.
Abstract: Two hundred and fifteen species in 127 genera and 47 families of inland water fishes are reported from Kampuchea. For each species the following data are given: scientific name, vernacular name in Khmer, references used, distribution and comments if any. 81 species in 42 genera belong to the family Cyprinidae, for which a key is provided, and 41 species in 23 genera and 8 families belong to the order Siluriformes. Taxonomic modifications: Parachela maculicauda (Smith, 1934) and P. siamensis (Gunther, 1868) are distinct of P. oxygastroides (Bleeker, 1852); Rasbora palustris Smith, 1945 and R. kobonensis Chaudhuri, 1913 are tentatively considered as synonyms of Parluciosoma daniconius (Hamilton, 1822); Rasbora espei Meinken, 1967 is distinct of R. heteromorpha Duncker, 1904. Rasbora paucisquamis Ahl, 1935 (?) is reported for the first time since its original description. Explanations of two particular zoogeographic patterns are presented.