Family: STRIGEIDAE

Question 1

Characteristics of Strigeidae

Answer 1

Anterior flattened or cup-shaped portion
Adhesive organ
Contains gonads
Bursa copulatrix
Furcocercous cercariae

Question 2

Species of Family STRIGEIDAE

Answer 2

Apatemon gracilis
Parastrigea robusta
Cotylus cornutus
Cotylus platycephalus
Cotylus variegatus

Question 3

Final host of Apatemon gracilis

Answer 3

Pigeons, domestic and wild ducks

Question 4

Site of Apatemon gracilis

Answer 4

Intestines

Question 5

I. H. Of Apatemon gracilis

Answer 5

1st - Planorbis sp.
2nd - Leech (Haemosis sanguisuga and Herpobdella atomaria) and the gut and eyes of fishes

Question 6

Host: ducks
Site: intestine
Morphology: resembles A. gracilis but with large lateral expansions

Answer 6

Parastrigea robusta

Question 7

Pathogenesis of Parastrigea robusta

Answer 7

Cup-shaped anterior
Blood vessels become markedly hyperemic and burst
Heavy infections

Question 8

Found in the small intestine and rectum of pigeons and ducks; Furcocercous; cause hemorrhagic enteritis; Intermediate hosts are Planorbis sp and Lymnaea sp.

Answer 8

C. variegatus