Volume 49/Number 4/Abstract 8
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Acta Parasitologica, Vol. 49, No. 4, 2004, 319-324
Frantisek Moravec(1)*, Ivan Fiala(1,2) and Iva Dykova(1,2) - Philometra thaiensis sp. nov. (Nematoda, Philometridae) from Tetraodon palembangensis and T. fluviatilis (Pisces) from fresh waters in Thailand, with a key to Philometra spp. parasitic in the host's abdominal cavity

(1)Institute of Parasitology, Academy of Sciences of the Czech Republic, Branisovska 31, 370 05 Ceske Budejovice; (2)Faculty of Biological Sciences, University of South Bohemia, Branisovska 31, 370 05 Ceske Budejovice; Czech Republic
*Corresponding author: moravec@paru.cas.cz

A new nematode species, Philometra thaiensis sp. nov., is described from gravid female specimens collected from the abdominal cavity of two freshwater Tetraodon spp., T. palembangensis (type host) and T. fluviatilis (Pisces, Tetraodontidae), after their import from Thailand into the Czech Republic in October 1998. It is characterized mainly by its body length (40.46-49.34 mm), arrangement and number of small cephalic papillae (eight papillae in outer circle and six papillae in inner one), structure and length (0.84-1.40 mm) of the oesophagus, short ovaries, and the absence of caudal projections. A key to Philometra spp. with gravid females parasitic in the abdominal cavity of fishes is provided.

KEY WORDS: Nematoda, Philometra, parasite, morphology, Tetraodon, Thailand

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