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hai nan dao hai yu de kong chang ke xi chong
Pages: 379-385
Year: Issue:  5
Journal: Oceanologia et Limnologia Sinica

Keyword:  口腹吸盘比海南岛新种感染强度肠吸虫阴茎囊贮精囊卵巢生殖孔寄生部位;
Abstract: In this paper six new species of digenetic trematodes belonging to the family Ope- coelidae Ozaki 1925 collected from marine fishes, in Hainan Island, are reported. All the measurements are in millimeter except ova in microns. The type specimens are deposited in the Institute of Oceanology, Academia Sinica. The description is given as fellows: 1. Opecoelus pteroisi sp. nov. (Fig. 1) Three specimens were collected from the intestine of Pterois lunulata Temminck et Schlegel. This species resembles O. pentadactyla (Manter, 1940) but differs from it in the acetabulum being 3 papilliform processes an anterior and posterior margin, the sucker ratio being 1: 1.8—2.1, the ovary being eggplantshaped, the seminal vesicle not extending into the posterior end of acetabulum, and the testes developed being far from the posterior end of body. 2. Pseudopecoelinae chirocentrosus sp. nov. (Fig. 2) Eight specimens were secured from the intestine of Chirocentrus dorab (Forskal). This species is very similar to P. dampieriae Yamaguti, 1942 but differs from it in the larger cirrus pouch, clavi-form, the testes ovaliform, the testes and ovary being not separated by vitelline gland. 3. Pseudopecoelina platycephali sp. nov. (Fig. 3) Eight specimens were collected in the intestine of Platycephalus indicus (Linnaeus). Four species of the genus Pseudopecoelina have been record previously, namely P. dompieriae Yamaguti, 1942. P. eiongata Hafeezullah 1971, P. xishaense Gu et Shen 1983,and P. chirocentrosus sp. nov., this species differs from them in the testes and ovary being gap, the cirrus pouch being shorter, and the eggs being smaller. 4. Manteriella chanis sp. nov. (Fig. 4) Six specimens were found in the intestine of Chanos chanos (Forskal). This species resembles M.crassa (Manter, 1942) but differs from the latter in that the testes lie symmetrcally just behind the acetabulum, the ovary is between the testes and parallel with them, the genital pore is behind the pharynx, the size of ova is large. 5. Helicometra selaroidis sp.nov. (Fig. 5) One specimen was obtained from the intestine of Selaroides leptolepis (Cuvier et Velenciennes). This species most resembles H. hypodytis Yamaguti, 1934 and H.scorpaenae Wang, 1982 but differs from them in the testes being four limbs, the ovary being unlobed, the eggs being smaller and the cirrus pouch being elongate. 6. Ozaki sillaginis sp. nov. (Fig. 6) Four specimens were collected from the intestine of Sillago sihama (Forskal). This species is similar to O. banneri (Martin, 1960), but differs from the latter by the body being pear-shaped, the seminal vesicle being situated at ovary right side of acetabulum, the testes tandem, the ovary at anterior part of testes, and the position, of genital pore different.
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