著者

松沼 瑞樹 本村 浩之

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.23-016, (Released:2023-07-21)

参考文献数

14

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Two species of lefteye flounder (Bothidae), Engyprosopon mozambiquense Hensley, 2003 and Engyprosopon parvipectorale Amaoka and Ho, 2018, are newly recorded from Japan based on five specimens (one male and four females) and a single male specimen, respectively, from Nakagusuku Bay, Okinawa Island, Ryukyu Islands. The two species resemble each other in sharing the following combination of characters: extremely narrow interorbital space; large mouth (posterior margin of ocular side upper jaw extending beyond anterior margin of lower eye); inner margin of gill rakers with serrae; and a pair of dark blotches on caudal fin absent. However, the present male specimen of E. mozambiquense differed from male specimens of E. parvipectorale from Taiwan and Japan in having a greater interorbital width, 11.5 in head length (vs. 23.1–67.7 in male E. parvipectorale), a rostral spine on the ocular side of the snout (vs. absent), and three dark blotches on the ventral surface of the ocular side lower jaw (vs. uniformly black). The present female specimens of E. mozambiquense were characterized by having small teeth on both jaws (vs. anterior teeth on the upper jaw, and all teeth on the lower jaw large and canine-like in both male and female E. parvipectorale). The two species are also similar to the Japanese endemic congener, Engyprosopon kushimotoense Amaoka, Kaga and Misaki, 2008 (known only from the male holotype from Wakayama Prefecture), and Engyprosopon longipelvis Amaoka, 1969 (known from southern Japan) in having gill rakers with serrae and a narrow interorbital space. However, E. kushimotoense and E. longipelvis differ from the former in having 43 and 37–42 lateral-line scales, respectively (vs. 49–52 in E. parvipectorale and 46–52 in E. mozambiquense). The new standard Japanese names “Yorime-darumagarei” and “Kiba-yorime-darumagarei” are proposed here for E. mozambiquense and E. parvipectorale, respectively.

著者

松沼 瑞樹 内田 喜隆 田城 文人

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

vol.66, no.2, pp.253-260, 2019 (Released:2019-11-28)

参考文献数

11

被引用文献数

1

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A single specimen of Scomberoides commersonnianus (Carangidae), previously recorded only from Kagoshima, Miyazaki and Toyama prefectures in Japan, was recently collected off Yamaguchi Prefecture (34˚25.3'N, 131˚21.0'E), southwestern Japan Sea. The newly collected specimen (FAKU 146095, 401.8 mm SL, 424.8 mm FL), representing the fourth Japanese record of the species, was probably transported by the Tsushima Current, flowing northward off the west coast of Kyushu and the Japan Sea coast of mainland Japan. A checklist of 27 carangid fishes found in Wakasa Bay and adjacent waters, central Japan Sea coast of Japan is also provided.

著者

松沼 瑞樹 山川 武 星野 和夫

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.19-003, (Released:2019-07-24)

参考文献数

18

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Previous Japanese records of Chelidoperca margaritifera Weber, 1913 (Perciformes: Serranidae) were reviewed, and all available Japanese specimens previously reported as that species found to be either C. santosi Williams and Carpenter, 2015 or C. tosaensis Matsunuma, Yamakawa and Williams, 2017. No evidence was found of C. margaritifera occurring in Japanese waters, the species instead being known solely from the holotype, collected off New Guinea. Chelidoperca santosi is characterized by three scale rows between the lateral line and middle of the spinous dorsal-fin base; two pairs of dark spots on the snout; a pair of dark spots on the lower jaw tip; the interorbital scales just reaching or extending slightly beyond mid-orbit but not reaching level with the posterior nasal pores; scales on the mandibular ventral surface extending anteriorly onto the dentary; and enlarged canine-like teeth on both jaws, thereby being distinguished from all Japanese congeners [C. hirundinacea (Valenciennes in Cuvier and Valenciennes, 1831), C. pleurospilus (Günther, 1880) and C. tosaensis]. The standard Japanese name “Minamihimekodai” should be applied to C. santosi.

著者

松沼 瑞樹 本村 浩之

出版者

日本魚學振興會

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.56, no.1, pp.21-30, 2009-04-27

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日本に分布するカダヤシ科グッピー属魚類には、日本各地の温泉地と琉球列島に生息するグッピー、および北海道室蘭市白老町に生息するコクチモーリーの2種が知られている。これら日本国内に生息するグッピー属魚類はいずれも人為的に導入されたものであり、本属魚類の原産地はいずれも中央アメリカである。鹿児島県の薩摩半島南部に位置する指宿市では、二反田川の南側に広がる市街を中心に多数の温泉保養施設があり、住宅地では一般家庭に温泉水が供給されている。それらの施設や住宅から排出された温泉水は、用水路を介して二反田川に流出している。鹿児島県レッドデータブックにおいて、米沢は指宿市の二反田川にコクチモーリーが生息することを目録的に報告した。しかし、本研究で指宿市のグッピー属魚類と北海道白老町産のコクチモーリーを詳細に比較したところ両者は別種であることが明らかになり、前者はPoecilia mexicana Steindachner、 1863に同定された。指宿市のP. mexicanaは二反田川の全流域にわたって、稚魚から成魚まで周年確認されており、本種は同河川で自然繁殖している。本報告では指宿市二反田川産P. mexicanaを記載するとともに、本種の成長に伴う形態の変化および性的二型を報告する。さらに本種には標準和名が与えられていないため新標準和名を提唱する。

著者

松沼 瑞樹 上阪 健太 山川 武 遠藤 広光

出版者

国立大学法人 鹿児島大学総合研究博物館

雑誌

Ichthy, Natural History of Fishes of Japan (ISSN:24357715)

巻号頁・発行日

vol.14, pp.35-38, 2021 (Released:2021-11-24)

著者

松沼 瑞樹 本村 浩之

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

vol.56, no.1, pp.21-30, 2009 (Released:2014-03-04)

参考文献数

19

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The Shortfin Molly, Poecilia mexicana, is herein reported for the first time from Japan on the basis of specimens collected from the Nitanda River (hot spring water) in Ibusuki City, Kagoshima Prefecture. The fish from Ibusuki City, previously misidentified as P. sphenops, is believed to represent an introduced population from the west coast of Central America (original locality of the species) or other places. Poecilia mexicana is characterized by having 9 dorsal- and anal-fin soft rays, 18 caudal-peduncle scales, unicuspid upper-jaw inner teeth, sensory pores on the dorsal surface of the snout, and the broad vertical orange band on the caudal fin in mature males. Morphological changes with growth and sexual dimorphism of Japanese P. mexicana are also described. A new Japanese name “Surikogi-mori” is proposed for the species.