◆ Helogenes marmoratus Günther 1863
syn.Helogenes amazonae Delsman 1941 Helogenes unidorsalis Glodek & Carter 1978 *1912『The Fresh-Water Fishes of British Guiana, Including a Study of the Ecological Grouping of Species and the Relation of the Fauna of the Plateau to That of of the Low-Land 8, Systematic Account of the Fresh-Water Fishes of British Guiana:Carl Henry Eigenmann』。
"ミッドナイトキャット"。pH6.0〜7.0・22〜26。