所謂的"青鱂魚" (Oryzias latipes complex)在台灣已有一段時間成為生態保育的圖騰. 在過去的文獻中, 台灣產族群通常以Oryzias latipes標記, 不過大多數的魚類學者都同意台灣產族群的分類地位應該被重新檢視. Parenti這篇文章分析了所有Oryzias物種的分子與形態親緣關係, 其中台灣的族群顯然並不屬於分布於東北亞(朝鮮半島與日本列島)的latipes, 而與中國的chinensis(如上圖所示, 圖片連結自AZoo網頁)屬於同一個種. 此外在水族市場上, Oryzias一直被當成以齒鯉目成員為主的"鱂魚"的一員. 不過近年的分子親緣關係研究都指出Oryzias應屬於頷針魚目的稻田魚科Adrianichthyidae.KEYWORDS
ABSTRACT
Ricefishes, known best by the model organism, the medaka, Oryzias latipes Temminck & Schlegel, 1846, comprise the family Adrianichthyidae, which ranges broadly throughout fresh and brackish waters of Central, South and Southeast Asia and the Indo-Malay-Philippines Archipelago as far east as Timor. Twenty-eight Recent species are recognized here in two monophyletic genera, Adrianichthys and Oryzias. Xenopoecilus and Horaichthys are placed in synonymy of Oryzias for the first time. Adrianichthys comprises four species from Lake Poso, Sulawesi, Indonesia. Oryzias comprises 24 species that live throughout the range of the family. A fossil genus and species, †Lithopoecilus brouweri from the Miocene of central Sulawesi, is included tentatively in the Adrianichthyidae. Evidence for the sister group relationship of adrianichthyids and exocoetoids is reviewed briefly and that relationship corroborated. Monophyly of adrianichthyids is likewise strongly supported here. Species groups within Oryzias are diagnosed as monophyletic largely based on osteology, colour pattern and meristic variation. They correspond only in part to species groups previously recognized based on chromosome constitution. Miniature species do not comprise a monophyletic group; disjunct absolute size in close relatives has evolved repeatedly. Oryzias latipes is a member of a species complex that includes O. luzonensis, O. curvinotus and the miniatures O. sinensis and O. mekongensis. A new species, Oryzias bonneorum sp. nov., is described from Lake Lindu, Sulawesi, Indonesia. Lectotypes are designated for Haplochilus celebensis Weber, 1894 and Haplochilus timorensis Weber & de Beaufort, 1922. No claim to original US Government works. Journal compilation © 2008 The Linnean Society of London, Zoological Journal of the Linnean Society, 2008, 154, 494–610.
