Studies on the life cycle of Haplorchis pumilio (Looss, 1896) Looss, 1899 with morphological redescription of larval and adult stages.
The life cycle of Haplorchis pumilio (Looss, 1896) Looss, 1899 was repeated from cercariae emerging from Melania tuberculata snails; encysted metacercariae in Oreochromys niloticus and Gambusia ffinis fishes; and juveniles and adults in albino rats and ducklings. Detailed description of different stages included: (a) The presence of anterior and posterior bulb-like structure in the first generation of rediae. The anterior one is separated from the body by a spiny isthmus, and the posterior by a sharp constriction. (b) Description of the penetrating apparatus and arrangement of ducts and openings of the penetration glands of the cercariae. (c) The presence of remnants of four pairs of skin glands, and the shape and arrangement of ventrogenital complex bars in eleven days old adults.
Abd el-Kader Saad
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Department of Zoology, Aswan Faculty of Science, Aswan and Assiut, Faculty of Science, Egypt.
Abed
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D000818:Animals; D004372:Ducks; D005399:Fishes / Q000469:parasitology; D005618:Fresh Water; D006578:Heterophyidae / Q000033:anatomy & histology* / Q000254:growth & development*; D007814:Larva; D018482:Muscle, Skeletal / Q000469:parasitology; D051381:Rats; D012908:Snails / Q000469:parasitology