Published online by Cambridge University Press: 05 June 2009
The miracidium of Transversotrema patialense (Digenea: Transversotrematidae) has 21 epidermal cells arranged in four tiers with an epidermal formula of 6, 9, 4, 2. The penetration gland is large, conspicuous, contains a posterior globular part with 6 prominent nuclei and opens out through 6 pores arranged in two lateral groups at the tip of the apical papilla. The miracidium lacks lateral papillae, possesses a well developed subepithelium, a pair of flame cells and a germ ball.