Azuma Perchlet, Plectranthias azumanus (Jordan & Richardson 1910)
An Azuma Perchlet, Plectranthias azumanus, from Shizuoka Prefecture, Numazu Uchiuramito Bay, Japan, December 2018. Source: Ryota Hasegawa / Web Fish Picture Book, https://zukan.com/fish/leaf59523. License: CC BY Attribution
Summary:
Body with a series of broad yellow to red bars along the side, a large red spot on the caudal peduncle, a yellow bar beneath the eye, and a small red spot on the caudal fin near the base of the upper rays.
Video of Plectranthias azumanus in an aquarium.
Video of Plectranthias azumanus in an aquarium.
Cite this page as:
Bray, D.J. 2021, Plectranthias azumanus in Fishes of Australia, accessed 05 Dec 2024, https://fishesofaustralia.net.au/Home/species/5569
Azuma Perchlet, Plectranthias azumanus (Jordan & Richardson 1910)
More Info
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Distribution |
Off Geraldton, Western Australia, in 252–253 m. Elsewhere the species occurs in the West Pacific: Japan and Taiwan, at depths of 60–280 m. |
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Features |
Dorsal fin X,14–15, all segmented rays branched; Anal fin III, 7, all but first segmented rays branched; Pectoral fin 14-15, upper 2 and lower 1 rays unbranched; Pelvic fin I,5, all segmented rays branched; Gill rakers 8+14, the upper 6 rudiments; Lateral line 33–37 tubed scales; Vertebrae 10+16. No antrorse serrations on lower edge of preopercle; scales with basal cteni. |
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Colour |
Colour in life from photograph: head and body pale tan, darker in interorbital area and on occiput; a short dusky grey stripe from mid-posterior orbit to above opercle; dusky grey wedge extending from anterior nape and base of third dorsal spine to point just above pectoral base, darkest on dorsal origin; indistinct dusky bar from bases of fifth through seventh dorsal spines to mid-side; dark grey bar extending from eighth dorsal spine through first segmented ray to just above anal-fin origin; short, indistinct bar extending from beneath final 2 segmented dorsal rays; caudal peduncle with dark grey saddle, extending to 1.5 scales below lateral line; fins hyaline except dark grey spot at dorsal-fin origin, and dark grey bar on mid-body extending to tips of eight through tenth dorsal spines and first segmented ray. |
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Similar Species |
In the similar Plectranthias kelloggi, the bars along the side are coalesced into a broad red wedge. |
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Etymology |
The specific name azumanus is from the old Japanese word Azuma (= east), "a poetical name for Japan), in reference to the type locality - Tokyo Bay, Japan. |
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Species Citation |
Pseudanthias azumanus Jordan & Richardson 1910, Proceedings of the United States National Museum 37(1714): 470. Type locality: Tokyo Bay, Japan [replacement name for Anthias japonicus Döderlein 1883, preoccupied by Anthias japonicus Bloch 1793]. |
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Author |
Bray, D.J. 2021 |
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Resources |
Azuma Perchlet, Plectranthias azumanus (Jordan & Richardson 1910)
References
Jordan, D.S. & Richardson, R.E. 1910. A review of the Serranidae or sea bass of Japan. Proceedings of the United States National Museum 37(1714): 421-474. See ref at BHL
Gill, A.C., Pogonoski, J.J., Moore, G.I. & Johnson, J.W. 2021. Review of Australian species of Plectranthias Bleeker and Selenanthias Tanaka (Teleostei: Serranidae: Anthiadinae), with descriptions of four new species. Zootaxa 4918(1): 1-116. https://doi.org/10.11646/zootaxa.4918.1.1
