Metapenaeus elegans De Man, 1907

Hsu, Yen-Cheng, Chen, Chien-Lin & Chan, Tin-Yam, 2022, On the penaeid shrimps of the genus Metapenaeus Wood-Mason in Wood-Mason & Alcock, 1891 (Crustacea, Decapoda, Penaeidae) of Taiwan, Zootaxa 5169 (4), pp. 331-346 : 332-334

publication ID

https://doi.org/ 10.11646/zootaxa.5169.4.3

publication LSID

lsid:zoobank.org:pub:E4BA0F07-43E6-4F1D-99E5-37A50AC33037

DOI

https://doi.org/10.5281/zenodo.6958920

persistent identifier

https://treatment.plazi.org/id/038E0438-1F72-FFAA-FF25-AD1BFB74A468

treatment provided by

Plazi

scientific name

Metapenaeus elegans De Man, 1907
status

 

Metapenaeus elegans De Man, 1907 View in CoL

( Figs. 2 View FIGURE 2 , 8b View FIGURE 8 )

Metapenaeus elegans De Man 1907: 130 View in CoL (type locality: Indonesia).— Miquel 1982: 83, figs. 31-32.— Lee et al. 1999: 445.

Penaeopsis elegans View in CoL —De Man 1911: 58, pl. 6-fig. 16.

Material examined. Yilan County, Dasi fishing port, 14 Oct 1988, 1 male cl 19.1 mm ( NTOU M02319 View Materials ) .

Diagnosis. Rostrum with 8 (excluding epigastric tooth) teeth along entire dorsal border, generally straight and extending to tip of antennular peduncle. Pereiopod I with small ischial spine. In males, basial spine of pereiopod III not particular elongated, merus of pereiopod V with basal notch accompanied by carinated tubercle, which slightly bent outward. Telson with minute movable lateral spinules. Male petasma with distomedian projections semi-circular and flap-like, extending to tips of distolateral projections.

Coloration. Body somewhat pinkish grey and covered with dense dark dots. Antennal flagella and distal half of uropods reddish.

Distribution. Indo-West Pacific from Sri Lanka to Taiwan and Wallis and Futuna Islands, intertidal to 55 m deep ( Miquel 1982; Pérez Farfante & Kensley 1997; Chan 1998).

Remarks. Although the list of Penaeoidea from Taiwan and adjacent areas by Lee et al. (1999) contained M. elegans as a new record, their sampling areas included many localities far from Taiwan in the South China Sea, East China Sea and northwest of the Philippines ( Lee et al. 1999: fig.1). Moreover, Lee at al. (1999) only listed M. elegans with no further information how such record was based (e.g., no voucher specimen information provided). This work formally reports M. elegans from Taiwan for the first time and extends the northern geographical range of this species from the Philippines to Taiwan. This species is very rare in Taiwan and at present only one male has been collected from the northeastern coast of the island despite of the recent extensive surveys on the decapod crustacean fauna in Taiwan. Amongst the species of this genus in Taiwan, M. elegans is most similar to M. moyebi ( Kishinouye, 1896) . Nevertheless, their petasma are very different with the distomedian projections extending far beyond the distolateral projections in M. moyebi ( Fig. 6b View FIGURE 6 ) but reaching as far as the tips of distolateral projections in M. elegans ( Fig. 2b View FIGURE 2 ). According to Miquel (1982: fig. 31c), the thylcum of M. elegans has the anterior end of anterior plate smooth while the lateral margins of the lateral plates distinctly ridged (v.s. anterior end of anterior plate bearing three tubercles while lateral plates with margins not ridged in M. moyebi , Fig. 7c View FIGURE 7 ).

NTOU

Institute of Marine Biology, National Taiwan Ocean University

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Penaeidae

Genus

Metapenaeus

Loc

Metapenaeus elegans De Man, 1907

Hsu, Yen-Cheng, Chen, Chien-Lin & Chan, Tin-Yam 2022
2022
Loc

Penaeopsis elegans

Man, J. G. de 1911: 58
1911
Loc

Metapenaeus elegans De Man 1907: 130

Man, J. G. de 1907: 130
1907
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