Pristipomoides argyrogrammicus (Valenciennes, 1832)

Nakagawa, Ryuichi, Sakurai, You & Motomura, Hiroyuki, 2022, Distributional Range Extension of the Pale Ornate Jobfish Pristipomoides amoenus (Teleostei: Perciformes: Lutjanidae) in the Western Pacific Ocean, with Notes on Newly Recognized Diagnostic Coloration, Species Diversity 27 (1), pp. 15-23 : 20-21

First Records of P. argyrogrammicus from the Tokara Islands

Twelve specimens from the Tokara Islands (KAUM–I. 51134, 51137, 63226, 78923, 89362, 89907, 104660, 110598– 110601, 125250, 146.6– 277.6 mm SL; Figs 1F , 2G ) were identified as P. argyrogrammicus due to their moderately deep body (33.6–38.4% of SL), X, 11 dorsal-fin rays, III, 8 anal-fin rays, 15 or 16 pectoral-fin rays, 57–62 pored lateralline scales, 11–14 lower gill rakers (including 10 rod-shaped rakers) ( Table 2), and the following coloration: body pale yellow to pink dorsally, silvery-white ventrally; small distinct silvery-blue blotches below the trunk lateral line; a distinct line formed by small silvery-blue blotches on the lower caudal peduncle; a small silvery-blue blotch on the upper opercle not reaching to the preopercular margin; a line of small silvery-blue blotches on the upper caudal peduncle extending onto the upper margin of the caudal-fin upper lobe; 3 clusters of silvery-blue blotches along the dorsal-fin base (dorsal view); and white margins on the dorsal and anal fins ( Figs 1F , 2G ).

Pristipomoides argyrogrammicus has been recorded from Njazidja Island (Grande Comore), Comoros Islands east to the Society Islands , and from southern Japan south to New South Wales, Australia ( Allen 1985; Randall et al. 2002; Allen et al. 2006; Heemstra et al. 2006). However, such records of P. argyrogrammicus may have included P. amoenus and need to be clarified. Although Yoshino in Masuda et al. (1984) described the distributional range of P. argyrogrammicus as “northward to southern Japan, and the Pacific, east to the Hawaiian Islands ”, no confirmed records of P.argyrogrammicus have been reported from the Hawaiian Archipelago ( Mundy 2005). In Japanese waters, P. argyrogrammicus has been recorded from the Izu and Ogasawara islands, Kanagawa (Misaki), Shizuoka (Omaezaki), Wakayama, Kochi (Tosa Bay), Kagoshima (Yaku-shima, Amami-oshima, Kikai-jima, Okinoerabu-jima, and Yoron-jima islands ), and Okinawa (Okinawa-jima, Ishigaki-jima, Yonaguni-jima, Minamidaito-jima islands and Senkaku Islands ) prefectures ( Shimada 2013; Sakurai 2014; Koeda et al. 2016; Motomura and Harazaki 2017; Hata 2019; Shimose et al. 2020; Motomura and Uehara 2020; Fujiwara and Motomura 2020; Shimose 2021). Thus, the present specimens represent the first record of the species from the Tokara Islands .

Comparative material examined. Pristipomoides argyrogrammicus — 36 specimens (141.7–277.6 mm SL) from Ryukyu Islands, Kagoshima, Japan: KAUM–I. 38089, 259.0 mm SL, Yakushima island; KAUM–I. 51134, 229.9 mm SL, KAUM–I. 51137, 277.6 mm SL, KAUM–I. 63226, 206.3 mm SL, KAUM–I. 69735, 268.8 mm SL, KAUM–I. 76054, 266.5 mm SL, KAUM–I. 78923, 224.0 mm SL, KAUM–I. 89362, 235.5 mm SL, KAUM–I. 89907, 236.2 mm SL, KAUM–I. 104658, 209.6 mm SL, KAUM–I. 104660, 261.2 mm SL, KAUM–I. 110598, 146.6 mm SL, KAUM–I. 110599, 162.8 mm SL, KAUM–I. 110600, 210.7 mm SL, KAUM–I. 110601, 160.7 mm SL, KAUM–I. 125250, 187.2 mm SL, Tokara Islands; KAUM–I. 55854, 234.7 mm SL, KAUM–I. 66880, 230.0 mm SL, KAUM–I. 89991, 245.3 mm SL, KAUM–I. 108166, 210.9 mm SL, KAUM–I. 132054, 179.4 mm SL, KAUM–I. 132055, 220.9 mm SL, KAUM–I. 132086, 173.6 mm SL, KAUM–I. 132083, 180.5 mm SL, KAUM–I. 132084, 210.4 mm SL, KAUM–I. 139296, 141.7 mm SL, Amami-oshima island, Amami Islands; KAUM–I. 72302, 177.8 mm SL, Kikai-jima island, Amami Islands; KAUM–I. 53948, 229.7 mm SL, KAUM–I. 121744, 277.0 mm SL, KAUM–I. 121745, 222.6 mm SL, Okinoerabu-jima island, Amami Islands; KAUM–I. 41219, 208.3 mm SL, KAUM–I. 47891, 225.1 mm SL, KAUM–I. 70800, 242.4 mm SL, KAUM–I. 70904, 275.2 mm SL, KAUM–I. 70905, 238.1 mm SL, KAUM–I. 103833, 233.4 mm SL, Yoron-jima island, Amami Islands.

Figures

Fig. 1. Fresh specimens of (A–C) Pristipomoides amoenus and (D–F) P. argyrogrammicus. A, KAUM–I. 156091, 177.3mm SL, Amami-oshima island, Kagoshima, Japan; B, KAUM–I. 113361, 184.7mm SL, Dong-gang, Pingtung, Taiwan; C, KAUM–I. 156091, 221.2mm SL, Amami-oshima island, Kagoshima, Japan; D, KAUM–I. 139296, 141.7mm SL, Amami-oshima island, Kagoshima, Japan; E, KAUM–I. 108166, 210.9mm SL, Amami-oshima island, Kagoshima, Japan; F, KAUM–I.51137, 277.6mm SL, Tokara Islands, Kagoshima, Japan.

Fig. 2. Preserved specimens of (A–D) Pristipomoides amoenus and (E–H) P. argyrogrammicus. A, KAUM–I.156091, 177.3mm SL, Amamioshima island, Kagoshima, Japan; B, D, KAUM–I. 113361, 184.7mm SL, Dong-gang, Pingtung, Taiwan; C, KAUM–I. 156091, 221.2mm SL, Amami-oshima island, Kagoshima, Japan; E, KAUM–I. 139296, 141.7mm SL, Amami-oshima island, Kagoshima, Japan; F, H, KAUM–I. 108166, 210.9mm SL, Amami-oshima island, Kagoshima, Japan; G, KAUM–I. 51137, 277.6mm SL, Tokara Islands, Kagoshima, Japan; D, H: dorsal view.