Lethacotyle

Lethacotyle is a genus of polyopisthocotylean monogeneans, included in the family Protomicrocotylidae.
The genus includes only two species: Lethacotyle fijiensis Manter & Price, 1953 ^[2] , the type-species of the genus, and Lethacotyle vera Justine, Rahmouni, Gey, Schoelinck, & Hoberg, 2013 .^[1] Both species are parasitic on the gills of jacks in the Pacific Ocean.^[1][2][3][4] They are known only from three localities: off Fiji,^[2] Andaman Islands,^[3][4] and New Caledonia.^[1]
The genus Lethacotyle is special in that its members have no clamps on their posterior attachment organ or haptor, in contrast to most polyopisthocotylean Monogenean which have clamps.^[5][6] This is reflected in the etymology of the name, which, according to Manter & Price^[2] is "from letha = forgetting, and cotyle = cup, and refers to the absence of clamps".

Lethacotyle
Holotype of Lethacotyle fijiensis Manter & Prince, 1953[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Platyhelminthes
Class:	Monogenea
Order:	Mazocraeidea
Family:	Protomicrocotylidae
Genus:	Lethacotyle Manter & Price, 1953
Species
Lethacotyle fijiensis Lethacotyle vera