Lernanthropus chrysophrys Shishido, 1898
publication ID |
https://doi.org/10.11646/zootaxa.4736.1.1 |
publication LSID |
lsid:zoobank.org:pub:970D7D36-6D8C-4463-B9EA-D3B8E191BE72 |
DOI |
https://doi.org/10.5281/zenodo.3671095 |
persistent identifier |
https://treatment.plazi.org/id/554BDB52-7343-FFEC-5FC9-FBDB2D3BF92B |
treatment provided by |
Plazi (2020-02-17 07:18:21, last updated 2024-11-26 03:30:40) |
scientific name |
Lernanthropus chrysophrys Shishido, 1898 |
status |
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Lernanthropus chrysophrys Shishido, 1898
( Fig. 16 View FIGURE 16 )
Material examined: 3♀♀ from Acanthopagrus australis (Günther, 1859) (TC17145), Moreton Bay, Queensland, 14 January 2016; collected by G.A. Boxshall; QM Reg. No. W29485. 2♀♀ from A. australis ( TC17250 ), Moreton Bay , Queensland, 18 January 2016 ; collected by G.A. Boxshall; QM Reg. No. W29486. 3♀♀ from A. australis ( TC17563 ), Moreton Bay , Queensland, 24 June 2016 ; collected by G.A. Boxshall; QM reg. No. W29487. 2♀♀ from A. australis ( TC17132 ), Moreton Bay , Queensland, 14 January 2016 ; collected by G.A. Boxshall. 1♀ from A. australis ( TC17310 ), Moreton Bay , Queensland, 20 January 2016 ; collected by G.A. Boxshall. 2♀♀ from A. australis ( TC17316 ), Moreton Bay , Queensland, 20 January 2016 ; collected by G.A. Boxshall. 4♀♀, 1♂ from A. australis ( TC17580 ), Moreton Bay , Queensland, 25 June 2016 ; collected by G.A. Boxshall; NHMUK Reg. No. 2018.234–243 .
3♀♀ from Acanthopagrus pacificus Iwatsuki, Kume & Yoshino, 2010 , Darwin Harbour , Northern Territory, 15 October 2014: collected by B.K. Diggles ; 2♀♀ MAGNT Reg. No. Cr 019241 ; 1♀ NHMUK Reg. No. 2018.233 .
Differential diagnosis: Cephalothorax about as long as wide, with almost straight frontal margin and paired posterolateral processes on lateral margins ( Fig. 16 View FIGURE 16 A–C); processes slightly curved posteriorly. Anterior part of trunk (second and third pedigerous somites) narrower than cephalothorax, longer than wide with slight indentation marking boundary between fused second and third pedigerous somites. Posterior part of trunk (fourth pedigerous somite) covered by almost circular dorsal trunk plate, with entire and almost linear free posterior margin. Urosome comprising fifth pedigerous somite, genital complex and abdomen, all fused. Paired caudal rami elongate, each ramus about 4 times longer than wide; tapering towards apex. Parabasal flagellum tapering from wide base to cylindrical distal part. Leg 3 forming fleshy lamella, projecting ventrally with distal part curving anteriorly ( Fig. 16B View FIGURE 16 ); lamella curved (so convex anteriorly and concave posteriorly). Leg 4 bilobate; lobes lanceolate ( Fig. 16C View FIGURE 16 ), inner lobe slightly shorter than outer, distal halves of both lobes protruding well beyond free posterior margin of dorsal trunk plate. Body length of ♀ ranging from 3.32 to 4.21 mm, with a mean of 3.78 mm (based on 9 specimens); body length of single ♂ 1.73 mm.
Distribution: This species was originally described from Japan ( Shishido, 1898) and has been recorded subsequently on numerous occasions, on Acanthopagrus schlegelii in Japanese waters ( Yamaguti, 1936 (as Sparus longispinis ); Shiino, 1955; Ho & Do, 1985). This species has also been reported on A. latus , A. schlegelii and A. berda (Forsskål, 1775) in Taiwan ( Liu et al., 2009a); on A. schlegelii (as Sparus macrocephalus ) in China ( Song & Chen, 1976), and on A. berda in India ( Tripathi, 1962; Pillai, 1985). This species has previously been reported in Australian waters, where it is widespread: Byrnes (1988) recorded it on A. australis , A. pacificus (historically misidentified as A. berda , see Iwatsuki et al., 2010) and A. latus collected at numerous localities around the coast of Australia including: Point Samson, Broome (WA), Darwin, Bing Bong (NT), Townsville, Gladstone, Brisbane (QLD) and Eden (NSW). It is reported here from Moreton Bay for the first time.
Remarks: This species has been redescribed numerous times, most recently by Liu et al. (2009a). The description by Ho & Do (1985) is ideal for comparisons as it is supported by illustrations of the highest quality. The rounded knob-like post-antennal process of the female was figured by Yamaguti (1936).
Byrnes, T. (1988) Lernanthropids and lernaeopodids parasitic on Australian bream (Acanthopagrus sp.). Publications of the Seto Marine Biological Laboratory, 83, 97 - 120. https: // doi. org / 10.5134 / 176147
Ho, J. - S. & Do, T. T. (1985) Copepods of the family Lernanthropidae parasitic on Japanese marine fishes, with a phylogenetic analysis of the lernanthropid genera. Report of the Sado Marine Biological Station, Niigata University, 15, 31 - 76.
Iwatsuki, Y., Kume, M. & Yoshino, T. (2010) A new species, Acanthopagrus pacificu s from the Western Pacific (Pisces, Sparidae). Bulletin of the National Museum of Nature and Science, Series A, 36 (4), 115 - 130.
Liu, W. - C., Ho, J. - S. & Lin, C. - L. (2009 a) Three species of Lernanthropus de Blainville, 1822 (Copepoda, Lernanthropidae) parasitic on marine fishes of Taiwan. Journal of the Fisheries Society of Taiwan, 36, 29 - 48.
Pillai, N. K. (1985) Fauna of India. Parasitic copepods of marine fishes. Zoological Survey of India, Calcutta, 900 pp.
Shiino, S. M. (1955) Copepods parasitic on Japanese fishes. 8. The Anthosomidae. Reports of the Faculty of Fisheries, Prefectural University of Mie, 2, 50 - 68.
Shishido, I. (1898) Parasitic copepod, Lernanthropus. Dobutsugaku-Zasshi [Zoological Magazine], Tokyo, 10, 120 - 126.
Song, D. & Chen, G. (1976) Some parasitic copepods from marine fishes of China. Acta Zoologica Sinica, 22, 406 - 424.
Tripathi, Y. R. (1962) Parasitic copepods from Indian fishes III. Family Anthosomatidae and Dichelesthidae. Proceedings of the 1 st All-India Congress of Zoology, 2, 191 - 217.
Yamaguti, S. (1936) Parasitic copepods from fishes of Japan. Part 3. Caligoida, II. Publications of The Seto Marine Biological Laboratory, 1936, 1 - 21, pls. 1 - 9. [private publication]
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