Nerocila longispina Miers, 1880

Ravichandran, S., Vigneshwaran, P. & Rameshkumar, G., 2019, A taxonomic review of the fish parasitic isopod family Cymothoidae Leach, 1818 (Crustacea: Isopoda: Cymothooidea) of India, Zootaxa 4622 (1), pp. 1-99 : 52-53

publication ID

https://doi.org/ 10.11646/zootaxa.4622.1.1

publication LSID

urn:lsid:zoobank.org:pub:4537BB46-452F-4E0C-A444-4AA5E12A64E7

DOI

https://doi.org/10.5281/zenodo.5698821

persistent identifier

https://treatment.plazi.org/id/E129637E-FFA9-A477-FF47-FB9FFBC3FE04

treatment provided by

Plazi

scientific name

Nerocila longispina Miers, 1880
status

 

Nerocila longispina Miers, 1880 View in CoL View at ENA

( Fig. 8 View FIGURE 8 d–f)

Nerocila longispina Miers, 1880: 468 View in CoL .— Nierstrasz, 1915: 78.— Nierstrasz, 1931: 125. Ellis, 1981: 124.— Bruce, 1987b: 355, 412, fig. 35a–d.— Trilles, 1994: 92.— Rameshkumar, Trilles & Ravichandran 2011: 82–84, figs 3, 4.— Trilles, Ravichandran & Rameshkumar, 2011: 452.— Trilles, Rameshkumar & Ravichandran, 2013: 1273–1286, fig. 2d.—Anand Kumar, Rameshkumar, Ravichandran, Rethna Priya, Nagarajan & Kwang Leng, 2015: 206–210, fig. 2d.

Type and type locality. Holotype, held at British Museum (Natural History), London ( BMNH 1849 : 86) figured by Bruce , (1987) from Malabar coast, India.

Material examined. 1 ovig. female (20 mm) from Therapon puta , ( CAS / MBRM C- 21); 3 ovig. females (24–26 mm), from Otolithes ruber (Bloch & Schneider, 1801) , Vedaranyam, 08 September 2009, coll. G. Rameshkumar ( CAS / MBRM C-22 C-24 ) ; 1 ovig. female (22 mm), Nagapattinam, 22 July 2017, from Otolithes ruber , coll. S. Ravichandran ( ZSI / MBRC D1-543 ) , the Southeastern coast of India.

Remarks. Nerocila longispina has not been described and figured by Miers (1880); the lateral view of the coxae of the sixth pereonite was only drawn by the author. Bruce (1987) gave few figures (dorsal view, ventral view, cephalon, pereopod 7 and uropods) without a description of the holotype of this species (BMNH: Holotype 1849: 86. Malabar; presented by I. Ward, according to Ellis 1981).

Nerocila longispina was later diagnosed and redescriped by Rameshkumar et al. (2011) collected on Therapon puta and Otholites ruber from Vedaranyam, Southeastern coasts of India. Nerocila longispina has a body about 2 times as long as wide, widest between pereonites 6–7; cephalon anterior margin narrowly rounded or with a slender medial point; coxae 2–7 produced into successively longer pointed processes, always exceeding posteroventral corners of pereonites and more strongly angled away from the body; pleotelson about 1.2 times wider than long, smoothly rounded; uropod rami extending beyond posterior margin of pleotelson; exopod slightly longer than endopod; endopod with a notch on medial margin and very coarsely serrate lateral margin.

Nerocila longispina View in CoL belongs to the Emphylia group of species ( Bowman 1978; Bruce 1987b). Until now, it is the single species of that group, other than Nerocila sundaica Bleeker, 1857 View in CoL , that has the anterior margin of the cephalon narrowly rounded and the basal segments of the antennula inflated and closes set. Nerocila longispina View in CoL differs from Nerocila sundaica View in CoL in having the lateral margin of uropod endopod finely serrate, the coxae 5–7 more strongly angled away from the lateral margin of the body, the posterolateral angles of pereonite 7 weakly produced instead backward into a pointed process as in Nerocila sundaica View in CoL .

Colour. Pale tan with sparsely scattered chromatophores ( Rameshkumar et al. 2011).

Size. Non-ovig. female 20 mm; ovig. females 20–26 mm ( Rameshkumar et al. 2011).

Distribution. Record from Malaysian region ( Miers 1880; Bruce 1987b), Malabar and Java ( Ellis 1981) and the southeastern coast of India ( Rameshkumar et al. 2011).

Host. In most instances, the hosts are unknown from the previous report. Latter Rameshkumar et al. (2011) two hosts are identified: Therapon puta (Therapontidae) and Otolithes ruber (Sciaenidae) .

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Cymothoidae

Genus

Nerocila

Loc

Nerocila longispina Miers, 1880

Ravichandran, S., Vigneshwaran, P. & Rameshkumar, G. 2019
2019
Loc

Nerocila longispina

Ravichandran, S. & Rameshkumar, G. & Trilles, J. - P. 2011: 452
Trilles, J. - P. 1994: 92
Bruce, N. L. 1987: 355
Ellis, J. 1981: 124
Nierstrasz, H. F. 1931: 125
Nierstrasz, H. F. 1915: 78
Miers, E. J. 1880: 468
1880
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