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Acta Parasitologica, Vol.47, No. 1, 2002, 34-40
Moravec Frantisek (1)*, Ogawa Kazuo (2), Suzuki Masaaki (3), Miyazaki Kenji (4), Donai Hayato (4) - On two species of Philometra (Nematoda, Philometridae) from the serranid fish Epinephelus septemfasciatus in Japan.

(1) Institute of Parasitology, Academy of Sciences of the Czech Republic, Branisovská 31, 37005 Ceske Budejovice, Czech Republic; (2) Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113, Japan; (3) Nagasaki Prefectural Institute of Fisheries Experimental Station, Taira, Nagasaki 851-2213, Japan (present address: North District Prefectural Fisheries Extension Advisory Center, Tabira, Kitamatsuura, Nagasaki 859-4825, Japan); (4) Tsushima Fisheries Extension Advisory Center, Izuhara, Shimoagata, Nagasaki 817-8510, Japan
* Corresponding author

Two nematode species of the genus Philometra Costa, 1845 (only females), P.  ocularis sp. nov. and P.  managatuwo Yamaguti, 1941 were recorded from the ocular cavity and the gonad, respectively, of the serranid fish (grouper) Epinephelus septemfasciatus (Thunberg) from the coast of the Tsushima Island, Nagasaki Prefecture, Japan. The new species is mainly characterized by the presence of four conspicuously large, crescent-shaped, fleshy cephalic papillae of the external circle and two small, subterminal papilla-like projections on the caudal end. Philometra cephalus is transferred to the genus Philometroides Yamaguti, 1935 as P.  cephalus (Ramachandran, 1975) comb. nov. The finding of P. managatuwo represents the second record of this species and a new host record.

KEY WORDS: Philometra, new species, Nematoda, serranid fish, Epinephelus, Japan
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