著者

森 俊彰 岡本 誠 山内 信弥 石井 輪太郎 城倉 昴

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.22-013, (Released:2023-01-16)

参考文献数

24

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Three juvenile specimens of Odontanthias borbonius were collected from Suruga Bay (2 specimens, 20.0–23.4 mm standard length (SL), 95–100 m depth) and Okinawa (23.7 mm SL, 180 m depth), Japan. Because little is known of juvenile morphology of the species, the specimens are described and compared with adults from Japan. Fresh coloration of the juveniles was similar to that of adults, being characterized by a pale pink body and large yellow spots. Following fixation, the juvenile coloration was lost, although black pigment vesicles scattered in the former positions of the yellow spots indicated that O. borbonius can be distinguished from all other congeners, which lack such spots. Juveniles of the former had a large, smooth, interopercular spine, the supraocular ridge with serrations, and serrated posttemporal spines.

著者

岡本 誠 倉石 信 藤井 芳 森 俊彰

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.20-003, (Released:2020-05-29)

参考文献数

28

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Fertilized eggs of two manefishes (Caristius macropus and Paracaristius nudarcus) were collected off Shionomisaki, Wakayama Prefecture, Japan and hatched in an aquarium. Descriptions are provided for early-life stages of both species [C. macropus (6 specimens: 8.9–125.9 mm in standard length: SL; maximum rearing period 255 days) and P. nudarcus (26.8 mm SL; 64 days)], based on the reared larval and juvenile specimens. Characters known to be diagnostic for the genus Caristius, including small sized lateralline scales and serrated lower caudal-fin rays, appeared from 80.9 mm SL in juvenile C. macropus. Juveniles of the two species differed in dorsal fin shape and meristic characters. The occurrence of fertilized eggs in waters off Wakayama Prefecture, Japan indicated that C.macropus and P. nudarcus both spawn in Kuroshio waters.