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''Pseudorhabdosynochus manifestus'' is a diplectanid monogenean parasite first found in host ''Epinephelus malabaricus'' near Nouméa, between its secondary gill lamellae. It can infest its host by the hundreds. It was ascribed that name because it was the most abundant species found while its descriptive study was taking place.〔Justine, Jean-Lou, and Aude Sigura. "Monogeneans of the malabar grouper ''Epinephelus malabaricus'' (Perciformes, Serranidae) off New Caledonia, with a description of six new species of ''Pseudorhabdosynochus'' (Monogenea: Diplectanidae)." Zootaxa 1543 (2007): 1-44. (Abstract ) (Article (Open Archive) ) 〕 As appreciated from studying juveline speciments, the development of female organs precedes that of male organs in this species and is likely the case in other ''Pseudorhabdosynochus'' species.〔 ''Pseudorhabdosynochus huitoe'', ''Pseudorhabdosynochus shenzhenensis'' and ''Pseudorhabdosynochus serrani'' all share with ''P. manifestus'': a sclerotised vagina with a conical primary canal with one lonely coil anteriorly, and small primary and secondary chambers. ''P. huitoe'', furthermore, shares ''P. manifestus'' characteristic spherical primary chamber with a think internal wall. ''P. manifestus'' is different by having a longer vagina, and morphological differences in the quadriloculate organ and hamuli.〔 ''P. shenzhenensis'' and ''P. serrani'' also differ from ''P. manifestus'' by measurements of hamuli and quadriloculate organs, which are greater in the latter. At the same time, the former do not show a distinctive ring in the posterior part of the primary canal, while the shape of their chambers is different as well. Finally, tegumental scales could also show morphological differences amongst these species.〔 ==Description== It has an elongate body, with a length of about 670 µm and a width of about 290 µm. It possesses a scaly tegument, 3 pairs of head organs and 2 pairs of eyespots. The haptor is differentiated from its body, being less wide (about 220 µm), and exhibits 2 round squamodiscs, 2 pairs of lateral hamuli, 3 bars and 14 hooklets. There is a groove visible on the ventral side of its flat ventral bar.〔 It has a subspherical pharynx, with a length of about 50 µm, and lacks an esophagus, its intestinal bifurcation following the latter organ. It shows a simple caeca that terminates at the level of the posterior margin of its vitellarium. Its testis are also subspherical and intercaecal, with a length of approximately 70 µm; its quadriloculate organ with an inner length of about 51 µm. At the same time, its ovary is subequatorial, intercaecal and pretesticular, encircling the right caecum, with a width of about 80 µm. Its oviduct forms the ootype and is surrounded by the Mehlis gland; the ootype opens into the uterus. It counts with an unsclerotised, dorsally question mark-shaped vagina that is elongate; its total length is about 35 µm.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pseudorhabdosynochus manifestus」の詳細全文を読む スポンサード リンク
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