Renocila alkoo Bruce, 1987

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 : 72-73

Renocila alkoo Bruce, 1987

Renocila alkoo Bruce, 1987c: 177–178 , figs 5, 6 .

Rcnocila ovate. — Barnard, 1936: 161, fig. 5.— Trilles, Ravichandran & Rameshkumar, 2011: 453.

Type and type locality. The holotype ovig. female (13.5 mm) held at the Queensland Museum, Brisbane, Australia ( QM WIOS 44) from the Bushy Island (Redbill Cay), Great Barrier Reef, Australia .

Remarks. This species can be recognized by the posterolateral margins of pereonites 6-7 weakly produced, laterally bent. Renocila alkoo resemblance to R. ovata but is easily distinguished by having far shorter pereopod dactylus, longer antenna, pereopod 7 manifestly larger than 6 (both with a weakly carinate basis), and posterodistal angle of pereopod 1 basis truncate.

Barnard (1936) recorded Renocila ovata Miers, 1880 from Andaman Islands India, and gave figures of the maxilliped, mandible palp and pereopods 1 and 7 are similar to the illustrations of R. alkoo ( Bruce 1987c) . The figure of pereopod 1 differs from material examined by Bruce (1987c) having the posterodistal angle of the basis for more strongly produced, the posterior margin of the ischium carinate, and a shorter dactylus without nodules. Pereopod 7 differs by having a prominent carina on both the basis and ischium. Barnard’s material is not R. ovata , but is probably R. alkoo .

Distribution. Reported from Andaman Islands India ( Barnard 1936) and Great Barrier Reef from the Capricorn Group in the south to Swains Reefs and Bushy Island reef off Mackay ( Bruce 1987c).

Hosts. Unknown.

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.