Ophiotaenia oumanskyi Chambrier, Pertierra, O. & Ch-, 2012, sp. n.
In: Ophiotaenia oumanskyi sp. n. (Eucestoda: Proteocephalidea), 2012, S. 561-570
unknown
Zugriff:
Ophiotaenia oumanskyi sp. n. Figs. 1-8 TYPE MATERIAL: Holotype MHNG-PLAT-62560, 1 whole mounted slide. – Paratype 1, MHNG-PLAT-82004, 1 whole mounted slide. – Paratype 2, MHNG-PLAT-82005, 3 whole mounted slides, 10 cross sections. All material is from the type locality and was collected by Carlo Dlouhy 4.02.2002, field number Py 9044. DESCRIPTION (BASED ON THREE ENTIRE SPECIMENS): Proteocephalidae, Proteocephalinae. Large-sized worms, 50-96 mm long, up to 1.23 mm wide, flattened dorsoventrally, with last proglottides elongated. Strobila acraspedote, anapolytic, with about 150 proglottides; 101-138 (x = 125) immature proglottides (up to appearance of spermatozoa in vas deferens), 5-9 (x = 7) mature proglottides (up to appearance of eggs in uterus), 2-6 (x = 4) pregravid proglottides (up to appearance of hooks in oncospheres); 10-17 (x = 13) gravid proglottides. Proliferation zone, 1000-1400 long. Immature proglottides wider than long; and mature, pregravid, gravid proglottides longer than wide. Last gravid proglottides elongated (length: wide ratio 2.3-5.7). Scolex spherical, 350-410 wide, contains numerous cells with granular inclusions in the apical region. Apical organ present, 38-56 (x = 43) × 50-65 (x = 54, n = 3), ratio of the width of the apical organ to the width of the scolex 14-17%. Four small uniloculate suckers, 150-170 in diameter (Fig. 1). Internal longitudinal musculature developed (Figs 3-5), forming small anastomosed bundles of muscular fibres. Osmoregulatory canals usually situated between vitellaria and testes. Ventral canal rarely overlapping vitellaria. Ventral canals 25-50 in diameter, with secondary canals ending beneath the tegument; dorsal canals 10-15 in diameter (Figs 1, 3-5). Testes medullary, oval, 60-75 (x = 70) × 35-45 (x = 40, n = 21) in diameter, numbering 85-119 (x = 103, n = 21, CV = 8%), in one or two layers, in two lateral fields between anterior margin and preovarian space, reaching to ovary (Figs 4, 7), degenerated in last gravid proglottides. Occasionally, some testes ...
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Ophiotaenia oumanskyi Chambrier, Pertierra, O. & Ch-, 2012, sp. n.
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Autor/in / Beteiligte Person: | De Chambrier, Alain ; Gil de Pertierra, Alicia ; P., O. ; Ch- |
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Zeitschrift: | Ophiotaenia oumanskyi sp. n. (Eucestoda: Proteocephalidea), 2012, S. 561-570 |
Veröffentlichung: | 2012 |
Medientyp: | unknown |
DOI: | 10.5281/zenodo.7037166 |
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