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  • Title: Bakkeius moragai n. gen. et n. sp. and Pojmanskia riosae n. gen. et n. sp. (Trematoda: Digenea: Brachylaimoidea) in birds from the Area de Conservación Guanacaste, Costa Rica.
    Author: Zamparo D, Brooks DR, Causey D.
    Journal: J Parasitol; 2003 Aug; 89(4):823-8. PubMed ID: 14533697.
    Abstract:
    We describe 2 new species of leucochloridiid-like brachylaimoid digeneans parasitizing a variety of birds in the Area de Conservación Guanacaste, Costa Rica, each of which we assign to a new genus. According to Pojmanska's (Pojmanska, T. 2002a. Superfamily Brachylaimoidea Joyeux & Foley, 1930. In Keys to the Trematoda, D. I. Gibson, A. Jones, and R. A. Bray [eds.]. CAB International and The Natural History Museum, London, U.K., p. 31-36.) key for the Brachylaimoidea, we are unable to place either species in any family. One species most closely resembles members of Leucochloridium by having well-developed suckers, lacking an esophagus, and having cecal shoulders, gonads at the posterior end, and the genital pore at posterior end of body but differs by having symmetrical testes, a posttesticular ovary, and a terminal genital pore; thus, we propose the genus Bakkeius for it. The second new genus resembles members of Michajlovia by having ventral genital pores but differs by having extracecal uterine loops in the forebody, a cirrus sac containing the pars prostatica and seminal vesicle, and gland cells surrounding the genital pore; thus, we propose Pojmanskia for it. These new genera must currently be treated as incertae sedis according to Pojmanska (op. cit.); however, we feel that future phylogenetic analyses will require emendation of the family diagnosis for Leucochloridiidae to include those taxa with terminal and ventral genital pores and with preovarian testes.
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