Pseudirona laeopsi Pillai, 1964

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 : 72

Pseudirona laeopsi Pillai, 1964

Pseudirona laeopsi Pillai, 1964: 222–223 , fig. 6 .— Trilles, Ravichandran & Rameshkumar, 2011: 453.

Type and type locality. Pillai (1964) collected specimens from the gill chamber of Laeops macrophthalmus (Alcock, 1889) from Anchuthengu, Trivandrum, Kerala Coast, Arabian Sea. The author reported that the holotype female is deposited in the Indian Museum but the detail of the accession number is not available in the original description. The present museum inquiries, at the Indian museum, failed to recover any material for P. laeopsi and it seems that the types were either not submitted or it was lost.

Remarks. Pseudirona laeopsi was not reported since its original description by Pillai (1964). Pseudirona laeopsi can be distinguished from other cymothoid species by the extremely spiny and setose appendages. Until now the identification of this species is based only on Pillai’s original description and it needs an accurate redescription.

Distribution. Trivandrum, Kerala Coast, India (type locality) ( Pillai 1964).

Host. Known only from type host Laeops macrophthalmus (Alcock, 1889) ( Pillai 1964) .

Figures

FIGURE 6. Nerocila depressa Milne Edwards, 1840, female (30 mm), (ZSI/MBRC D1-541). a, dorsal view; b, lateral view; c, forns; d, antennula; e, antenna; f, mandible; g, maxillula; h, maxilla; i, maxilliped.