Plesionika martia (A. Milne-Edwards, 1883)

Souza-Filho, Jesser Fidelis De, 2017, Deep sea decapod crustaceans of São Pedro and São Paulo Archipelago, Equatorial Atlantic, Brazil, Zootaxa 4324 (2), pp. 331-347 : 342

publication ID	https://doi.org/10.11646/zootaxa.4324.2.6
publication LSID	lsid:zoobank.org:pub:C30B2A8A-3Ea9-4Dc2-8Aa6-0809Eb34E630
DOI	https://doi.org/10.5281/zenodo.5477391
persistent identifier	https://treatment.plazi.org/id/03AF879B-B12B-FFA0-FF57-FE871FC363A1
treatment provided by	Plazi (2017-09-27 06:09:05, last updated 2024-11-27 09:45:50)
scientific name	Plesionika martia (A. Milne-Edwards, 1883)
status

Treatment

Plesionika martia (A. Milne-Edwards, 1883) View in CoL

( Figure 8 View FIGURE 8 )

Pandalus martius A. Milne-Edwards , 188, pl 21.

Plesionika martia View in CoL — Crosnier and Forest, 1973: 112, figs. 63d, 64, 66 (see for extensive synonym).

Material examined. One specimen (TL 114.8 mm, CL 31.6 mm), MOUFPE 17899 View Materials , São Pedro e São Paulo Archipelago (0°54.560’ N e 29°21.895’ W), 340 m, 25 August 2015. GoogleMaps

Diagnosis. Carapace without lateral carinae; rostrum smooth dorsally for most of its length with few teeth (6– 9 dorsal rostral teeth) at base, none movable. Posterior margin of third abdominal somite straight and not armed; no subapical tooth. Second maxilliped with terminal segment broader than long, applied as strip to distal margin of penultimate segment. Pereopod 2 equal in length. Strap-like epipods present in at least 2 anterior pairs of pereopods. Pereopod 4 with epipod. Telson longer than sixth abdominal somite, with 3 pairs of dorsolateral spines, including pair adjacent to lateral pair of posterior spines ( Ahamed et al., 2017).

Distribution. West Atlantic: off South Carolina to Florida and off Bermuda; NE and SW Gulf of Mexico. Eastern Atlantic, Azores: off SW Ireland, Bay of Biscay, throughout Mediterranean, Gulf of Guinea, and Cape of Good Hope. Asian waters: Andaman Sea, Bay of Bengal, Indian Ocean and Arabian Sea; at depths of 180–400 m ( Pequegnat, 1970; Chace, 1985; Ahamed et al., 2017).

Remarks. Chace (1985) states that the proportional size of the rostrum cannot be used to distinguish P. martia from other species such as De Man (1920) and others have attempted to do. In this sense, the size and shape of the eye (orbit configuration) appear to be the characteristic that differ from P. martia of the Indo-Pacific species (e.g. Plesionika orientalis ). Another important feature is the length and proportion of the distal segments of the three posterior pairs of pereopods. However, these appendages are extremely fragile and are usually absent in the samples ( Chace, 1985; Ahamed et al., 2017).

References

Ahamed, F., Cardoso, I. A., Ahmed, Z. F., Hossain, MD. Y. & Ohtomi, J. (2017) An overview of the genus Plesionika Bate, 1888 (Decapoda, Caridea, Pandalidae) in Asian waters. Zootaxa, 4221 (5), 575 - 593. https: // doi. org / 10.11646 / zootaxa. 4221.5.6

Chace, F. A. (1985) The Caridean shrimps (Crustacea: Decapoda) of the Albatross Philippine Expedition, 1907 - 1910, Part 3: Families Thalassocaridae and Pandalidae. Smithsonian Contributions to Zoology, 411, 1 - 152.

Crosnier, A. & Forest, J. (1973) Les crevettes profondes de l'Atlantique oriental tropical. Faune Tropicale, 19, 1 - 409.

Pequegnat, L. H. (1970) Deep-sea caridean shrimps with descriptions of six new species. In: Pequegnat, W. E. & Chace, F. A. Jr (Eds.), Contributions on the biology of the Gulf of Mexico, Gulf Publishing, Houston, pp. 59 - 123.