著者
佐藤 真央 井上 裕太 溝脇 一輝 小林 大純 松尾 怜 外山 太一郎 日比野 友亮
出版者
一般社団法人 日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
pp.20-036, (Released:2021-03-22)
参考文献数
14

Twelve specimens (71.5–89.9 mm standard length) of the genus Lutjanus (Lutjanidae), collected from Ishigaki-jima Island, Ryukyu Archipelago, southern Japan, were identified as Lutjanus biguttatus (Valenciennes in Cuvier and Valenciennes, 1830), being characterized by the following combination of characters: dorsal fin XI, 12; anal fin III, 8; pectoral rays 15–16; body depth 3.5–3.8 in standard length; preorbital depth 10.8– 16.3 in head length; tongue smooth, without patch of fine granular teeth; a dark longitudinal band from snout to caudal fin base; and two white spots above the lateral line. Dentition of the premaxilla and dentary, including several canine-like (one being long and curved) and many small conical teeth, is illustrated. The collected specimens were determined to be juveniles, due to their coloration matching that of juveniles previously described, in addition to their small body size. Although the coloration of L. biguttatus is similar to that of L. vitta during the juvenile stage, the latter species is distinguished by greater body and preorbital depths. The specimens of the former had been caught in a significantly localized area (in ca. 4 m depth) over several days, indicating the likelihood of their having been schooling, as observed in previous studies of the species. Lutjanus biguttatus is distributed in the Indo-western Pacific, from the Maldives to the Solomon Islands, but had not previously been recorded from Japanese waters. The new standard Japanese name “Futahoshi-fuedai”, given in reference to the two white spots above the lateral line in the collected specimens, is proposed.

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共著論文が出てました(出遅れた笑:詳細はRT参照) フタホシフエダイという魚の日本初記録です。 昨年石垣で行なわれた釣り合宿の成果です。共著者全員で釣りまくった超ハッピーな遠征でした。 (写真は未公開の青バック水槽写真。尾鰭の黄色が映えます) https://t.co/iAKnVNm0dh https://t.co/JjSt3NCCdX https://t.co/V0FrJwnTFh
論文が出ました。石垣島で日本未記録のフエダイをたくさん釣り、フタホシフエダイと名付けました。ときにホソフエダイと呼ばれてきた種です。魚類学会会員しか見られませんので必要な方はDMください。青背景の未公開写真と、つっ、釣れた~うぉぉぉ!!!ってとこを貼ります。 https://t.co/3RiGQYa5g2 https://t.co/lTno9NsX9K

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