Metapenaeus, Wood-Mason

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 : 345

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.6958928

persistent identifier

https://treatment.plazi.org/id/038E0438-1F7D-FFA0-FF25-A9BAFA61A36E

treatment provided by

Plazi

scientific name

Metapenaeus
status

 

Key to species of Metapenaeus View in CoL in Taiwan

1. Rostrum with distinct basal crest and failed to reach distal segment of antennular peduncle.................. M. tenuipes View in CoL

-. Rostrum without distinct basal crest and more or less extending to tip of antennular peduncle......................... 2

2. Telson with 3 pairs of large movable spines..................................................... M. intermedius View in CoL

-. Telson without distinct movable spines.................................................................... 3

3. Rostrum unarmed at distal 1/3; males with basial spine of the pereiopod III extremely long and barbed......... M. joyneri View in CoL

-. Rostrum armed with teeth along entire dorsal border; males with basial spine of pereiopod III not elongated and simple.... 4

4. Males with basal notch at merus of pereiopod V accompanied by a spiniform process and row of tubercles, petasma with distomedian projections very large and greatly swallow, triangular or subquadrate in shape; female thelycum with posterolateral edges of lateral plates highly elevated and strongly recurved inward....................................... M. ensis View in CoL

-. Males with basal notch at merus of pereiopod V only accompanied with a large tubercle, petasma with distomedian projections flap-like or reduced; female thelycum with margins of lateral plates flattened or if raised, not strongly curved inwards..... 5

5. Male petasma with distomedian and distolateral projections more or less extending to same level; female thelycum with lateral plates having lateral margins raised as ridges....................................................... M. elegans View in CoL

-. Male petasma with distomedian projections considerably overreaching or falling short of distolateral projections; female thelycum with lateral plates having lateral margins not ridged...................................................... 6

6. Male petasma with distomedian projections very large and extending far beyond distolateral projections; female thelycum with anterior margin of anterior plate convex and bearing 3 tubercles, lateral plates with median longitudinal furrow.. M. moyebi View in CoL

-. Male petasma with distomedian projections reduced, very low and far from tips of distolateral projections; female thelycum with anterior margin of anterior plate straight or concave, without tubercles, lateral plates lacking median longitudinal furrow............................................................................................ M. affinis View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Penaeidae

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