Lernaa
Lernaa (lẽr*nē"ȧ) , noun
[New Latin, from Latin Lernaeus Lernaan, from Lerna, Greek Le`rnh, a forest and marsh near Argos, the mythological abode of the hydra.]
(Zoology) A Linnaan genus of parasitic Entomostraca, -- the same as the family Lernaida.
The genus is restricted by modern Zoologists to a limited number of species similar to Lernaa branchialis found on the gills of the cod.
Also: Lernaea