Lethacotyle vera

[1] The species is ectoparasitic on the gills of the brassy trevally, (Caranx papuensis), off New Caledonia and was found only in this locality.

The body is elongate, flat, with a pointed head showing two anterior suckers.

The copulatory organs include a sclerotised cone-shaped vagina, 125-175 μm in length, and a male copulatory organ, comprising a ring of 21-27 spines which are 50 μm in length.

It bears two lateral flaps and a terminal lappet which is striated, and there are no clamps - this is a characteristic of the genus Lethacotyle.

[2][3] The etymology of the name of the species was, according to the authors of the taxon,[2] "vera, Latin for true, because Lethacotyle, a genus differentiated by absence of clamps, was based on true observations".

Spines of the male copulatory organ of Lethacotyle vera
Sclerotised vagina of Lethacotyle vera
Posterior part of Lethacotyle vera ; there are no clamps , but transverse striations are visible