Biology
Infecting location: Small intestine
Definitive hosts: Avian and human
Anatomical morphology
Size: 6-10.5 x 0.8-1.4 mm
Strong ventral sucker
Horseshoe-shaped head collar
At the oral sucker
Armed with 1-3 rows of 27 spines
Spines at the corner called corner spines (5 per each)
Found since cercaria
Long oesophagus
Testes
Small lobular testes at the center
Longitudinal arrangement