Redescription of Acanthostomoides apophalliformis (Trematoda, Acanthostomidae) from Percichthys trucha (Pisces, Percichthyidae) with notes on its life cycle in Patagonia, Argentina

OSTROWSKI DE NUÑEZ, MARGARITA; SEMENAS, LILIANA; BRUGNI, NORMA; VIOZZI, GUSTAVO; FLORES, VERÓNICA

ACTA PARASITOLOGICA

VERSITA

Lugar: Barsovia; Año: 1999 vol. 44 p. 222 - 228

1230-2821

Acanthostomoides apophalliformis Szidat, 1956 is described and its distribution,, prevalence and mean intensity of infection in different Patagonian lakes is included. Mature adults were found mainly in the digestive tract of Percichthys trucha, rarely on Oncorhynchus mykiss and Diplomystes viedmensis (new host record). The metacercaria parasitised mainly the liver of Galaxias maculatus and G. platei. Opisorchioid cercariae emerged from Heleobia hatcheri. Experimental infections with cercaria wxposed to G. maculatus were successful and the immature metacercaria obtained were similar to those naturally found in the same host.