A new free-living nematode Intasia monohystera Diplopeltidae) from the Barents Sea and the White Sea, with a key to genera of Diplopeltidaeстатья
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Аннотация:Intasia monohystera n. g., n. sp. (Diplopeltidae) is described from two localities, Håkon Mosby Mud Volcano in the Barents Sea (depth 1294 m) and Kandalaksha Trench in the White Sea (depth 270-287.5 m). The new genus Intasia is featured by: finely cross-striated cuticle without lateral differentiation; terminal mouth opening; rounded comma-like amphidial fovea, narrow tubular buccal cavity, evenly muscular pharynx, position of the ventral pore at the level of anterior part of pharynx, and an unpaired anterior outstretched ovary with a posterior blind sack. The new genus is closely related to Araeolaimus and Southerniella and differs mainly by prodelphic female gonad. A pictorial key for the twelve valid genera of the family Diplopeltidae is proposed. The genus Striatodora is considered as genus incerta sedis.