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31 October 2014 A New Ricefish of the Genus Oryzias (Beloniformes, Adrianichthyidae) from Lake Tiu, Central Sulawesi, Indonesia
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Abstract

We describe Oryzias soerotoi, a new species of ricefish, from Lake Tiu, Central Sulawesi, Indonesia. The new species is distinguished from all other species in the genus Oryzias in Sulawesi by combination of brilliant orange coloration in the dorsal and ventral margins of the caudal fins of adult males, 30–32 scales along the lateral midline, 9–10 pectoral-fin rays, head lengths of 21.9–24.9% SL, anal-fin base lengths of 23.7–29.7% SL, and maximum SL up to 32.1 mm. The orange margins of the caudal fins of males become more brilliant during courtship.

Kami mendiskripsi Oryzias soerotoi, satu jenis baru ikan padi dari Danau Tiu, Sulawesi Tengah, Indonesia. Jenis baru ini dengan mudah dapat dibedakan dari semua jenis anggota genus Oryzias di Sulawesi dengan adanya kombinasi warna jingga yang sangat mencolok di bagian atas dan bawah sirip ekor pada jantan dewasa, 30–32 jumlah sisik sepanjang garis sisi, 9–10 jumlah jari-jari sirip dada, ukuran kepala pendek 21.9–24.9% SL, panjang pada pangkal sirip anal 23.7–29.7% SL, dan maksimal SL mencapai 32.1 mm. Warna jingga di sirip ekor pada jantan menjadi lebih mencolok selama proses percumbuan.

2014 by the American Society of Ichthyologists and Herpetologists
Daniel F. Mokodongan, Rieko Tanaka, and Kazunori Yamahira "A New Ricefish of the Genus Oryzias (Beloniformes, Adrianichthyidae) from Lake Tiu, Central Sulawesi, Indonesia," Copeia 2014(3), (31 October 2014). https://doi.org/10.1643/CI-13-081
Received: 17 July 2013; Accepted: 1 May 2014; Published: 31 October 2014
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