OLSON (1974)

Life Cycle of Dactylogyrus vastator. The egg is released by a gravid adult (Ha-b) and settles to the bottom of a pond where it develops until an immature adult emerges (Hc-f). Dactylogyrus attaches to the fish and makes its way to the gills (Hg-j). Some aspects of Dactylogyrus anatomy: 1: head organs 2: eyespots 3-4: pharynx and intestine 5-7: testes, vas deferens, and genital pore 8-14:ovary, oviduct, genitointestinal canal, unembryonated egg in uterus, female genital opening, vitelline gland 15-: opisthaptor, anchor, transverse bar, marginal hooks D-G: developing larva in the egg and emergence of the immature adult |
LITERATURE CITED Olson, O. W. 1974. Animal Parasites, Their Life Cycles and Ecology. Dover. New York. |
By Jack R. Holt. Last revised: 02/01/2013 |