Oryzias dopingdopingensis, eine neuer Reiskärpfling aus Sulawesi

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Oryzias dopingdopingensis, eine neuer Reiskärpfling aus Sulawesi

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http://www.bioone.org/doi/10.1643/CI-17-704

BioOne Complete 2018

A New Riverine Ricefish of the Genus Oryzias (Beloniformes, Adrianichthyidae) from Malili, Central Sulawesi, Indonesia

Authors

Ixchel F. Mandagi1,2, Daniel F. Mokodongan2,3, Rieko Tanaka4 and Kazunori Yamahira2
1 Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia; Email: coelacanth.ixchel@gmail.com.
2 Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan; Email: (KY) yamahira@lab.u-ryukyu.ac.jp. Send reprint requests to KY.
3 Present address: Faculty of Fisheries and Marine Science, Halu Oleo University, Kendari 93232, Indonesia; Email: daniel_mokodongan@yahoo.com.
4 World's Medaka Aquarium, Nagoya Higashiyama Zoological Park, Nagoya 464-0804, Japan; Email: rieko-f@mbr.nifty.com.
Associate Editor: M. T. Craig.
Copeia
Vol. 106: , Issue. 2, : Pages. 297-304
https://doi.org/10.1643/CI-17-704

Abstract

We describe Oryzias dopingdopingensis, a new species of ricefish, from Doping-doping River, a river in Malili in central Sulawesi, Indonesia. The new riverine species is distinguished from lacustrine congeners in Malili Lakes by a combination of 33–36 scales along the lateral midline and body depths of 20.3–25.5% standard length (SL). Oryzias dopingdopingensis, new species, is also distinguished from all other Sulawesi Oryzias by a combination of 8–9 dorsal-fin rays, caudal peduncle depths of 10.2–11.4% SL, eye diameters of 8.5–9.9% SL, and maximum SL up to 35.8 mm. In breeding males, 5–8 black blotches or bars appear along the lateral midline. Analyses of mitochondrial ND2 sequences revealed that O. dopingdopingensisO. sarasinorum and O. eversi in western Sulawesi. However, unlike these two pelvic brooders, we observed that females of O. dopingdopingensis, new species, deposit eggs soon after spawning and exhibit no maternal care
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