Class: MONOGENEA

Question 1

Monogenea char.

Answer 1

Dorsoventrally flat, elongate body
Haptor with 1-3 pairs of large and 12-16 small hooks
External parasites(skin and gills) of fish, amphibia, some reptiles
Direct life cycle
Dactylogrids are oviparous while gyrodactylids are viviparous

Question 2

Most pathogenic in carp-rearing ponds in Europe
- cause proliferation and ulceration of gill epithelium

Answer 2

Dactylogyrus spp.

Question 3

Gyrodactylus solaris

Answer 3

Affects skin and gills of salmonid fish
Cause molting and skin erosions
Cause high mortalities in young fish
Tiny yellowish brown, whitish spot on gills