著者

Kentaro Mochizuki Yoshiaki Kai Hiromitsu Endo Hiroyuki Motomura

出版者

The Japanese Society of Systematic Zoology

雑誌

Species Diversity (ISSN:13421670)

巻号頁・発行日

vol.26, no.2, pp.281-287, 2021-10-07 (Released:2021-10-07)

参考文献数

13

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Ocosia spinosa Chen, 1981 (Tetrarogidae) is newly recorded from the Pacific coast of Japan, on the basis of 10 specimens (31.3–78.1 mm standard length), having been previously reported only from Taiwan. A revised diagnosis for the species, based on the Japanese specimens plus a single specimen from Taiwan, is given as follows: XV–XVIII, 7 or 8 dorsal-fin rays; III, 4–6 anal-fin rays; usually 13 (rarely 12) pectoral-fin rays; 12–18 lateral-line pores on body; 6–15 gill rakers; usually 28 (rarely 27) vertebrae; 2nd dorsal-fin spine longest, slightly longer than 3rd spine; interspinous dorsal-fin membranes of middle portion of dorsal fin incised for one-fourth to one-third of each spine length; dorsal profile of snout concave; posterior lacrimal spine directed backward, its length about 2–3 times greater than that of anterior lacrimal spine; small lateral lacrimal spine usually present (absent in larger specimens); small spine usually present at anterior end of suborbital ridge in smaller specimens (absent in larger specimens); weak stubby papillae covering upper lip and anterior half to one-third of lower lip; trunk uniformly brownish-red when fresh, without distinct markings (but with faint brownish small blotch near base of middle portion of dorsal fin in some individuals). Although the presence or absence of small spines on the lateral surface of the lacrimal and anterior end of the suborbital ridge has previously been regarded as an important diagnostic character of O. spinosa, examination of the present specimens showed that the character changes with growth. The present specimens represent the first Japanese records, as well as the northernmost and easternmost records for the species. The new English and Japanese standard names “Red Waspfish” and “Aka-hachiokoze”, respectively, are proposed for O. spinosa.

著者

Kenta Murasaki Yoshiaki Kai Hiromitsu Endo Atsushi Fukui

出版者

The Japanese Society of Systematic Zoology

雑誌

Species Diversity (ISSN:13421670)

巻号頁・発行日

vol.26, no.1, pp.23-29, 2021-01-01 (Released:2021-01-01)

参考文献数

33

被引用文献数

2

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The rare Japanese deep-sea snailfish Careproctus rhodomelas Gilbert and Burke, 1912 is redescribed based on the holotype and 10 newly-collected specimens (30.0–131.4 mm standard length), with notes on morphological variations in pelvic disk size and body coloration caused by ontogenetic development. An updated distribution of the species is also provided, including the first voucher-supported records off eastern Miyakejima Island and the Hatoma Knoll in the southern part of the Okinawa Trough.

著者

Yuta Inoue Hiromitsu Endo Hiroyuki Motomura Mizuki Matsunuma

出版者

The Japanese Society of Systematic Zoology

雑誌

Species Diversity (ISSN:13421670)

巻号頁・発行日

vol.25, no.1, pp.39-47, 2020-01-25 (Released:2020-01-25)

参考文献数

26

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Epinephelus kupangensis Tucker, Kurniasih, and Craig, 2016, previously known from the Indo-West Pacific as far north as Taiwan, was recorded from Japan for the first time on the basis of two specimens (98.1–384.6 mm SL) collected from Tosa Bay, Kochi and Okinawa prefectures. The Kochi specimen had been previously reported as the first Japanese specimen of “Kokuten-aohata”, Epinephelus amblycephalus (Bleeker, 1857). Epinephelus kupangensis differs from the latter in having slightly lower numbers of lateral-line scales (46–49 vs. 48–51) and lateral scale series 91–99 (vs. 103–120), and lacking a U-shaped white marking dorsolaterally on the head and a white band below the orbit (vs. both present). The standard Japanese name “Kokuten-aohata” should be applied to E. kupangensis, the new standard Japanese name “Yahazu-aohata” being proposed for E. amblycephalus.