Potamothrix scleropenis sp. nov. (Oligochaeta: Tubificidae) from Fuxian Lake, the Deepest Lake in Southwest China

Potamothrix scleropenis sp. nov. (Oligochaeta: Tubificidae) from Fuxian Lake, the Deepest Lake in Southwest China

Potamothrix scleropenis sp. nov. (Tubificidae: Tubificinae) is described from the profundal zone (74 m) of Fuxian Lake, the deepest lake (up to 155 m) on the Yunnan-Guizhou Plateau in China. The new species is assigned to Potamothrix because of its short vasa deferentia and its tubular atria without...

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Veröffentlicht in:Zoological science 2005-12, Vol.22 (12), p.1353-1357
Hauptverfasser: Cui, Yong-De, Wang, Hong-Zhu
Format: Artikel
Sprache:eng
Schlagworte:
Animals
China
Fresh Water
Freshwater
Fuxian Lake
Male
new species
Oligochaeta
Oligochaeta - anatomy & histology
Oligochaeta - classification
ORIGINAL ARTICLE
Potamothrix
Potamothrix scleropenis
profundal Tubificinae
Yunnan Province
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Zusammenfassung:Potamothrix scleropenis sp. nov. (Tubificidae: Tubificinae) is described from the profundal zone (74 m) of Fuxian Lake, the deepest lake (up to 155 m) on the Yunnan-Guizhou Plateau in China. The new species is assigned to Potamothrix because of its short vasa deferentia and its tubular atria without ejaculatory ducts and prostate glands. It differs from congeners by its cuticularized penis sheaths; bifurcated, strongly curved spermathecal chaetae; bifurcated lower prongs of bifids; and feathered hairs. P. scleropenis appears closely related to P. cekanovskajae Finogenova, 1972 and P. tudoranceaiSporka, 1994, since all the three species have homogeneous atria without prostate glands.
ISSN:0289-0003
DOI:10.2108/zsj.22.1353