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Sylphellapuccoon gen. n. sp. n. and two additional new species of aquatic oligochaetes (Lumbriculidae Clitellata) from poorly-known lotic habitats in North Carolina (USA)

机译:西尔弗拉皮孔根n。sp。 。以及来自北卡罗来纳州(美国)鲜为人知的乳液栖息地的另外两种新的水生寡头类动物(LumbriculidaeClitellata)

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摘要

Three new species of Lumbriculidae were collected from floodplain seeps and small streams in southeastern North America. Some of these habitats are naturally acidic. Sylphella puccoon >gen. n., >sp. n. has prosoporous male ducts in X–XI, and spermathecae in XII–XIII. Muscular, spherical atrial ampullae and acuminate penial sheaths distinguish this monotypic new genus from other lumbriculid genera having similar arrangements of reproductive organs. Cookidrilus pocosinus >sp. n. resembles its two subterranean, Palearctic congeners in the arrangement of reproductive organs, but is easily distinguished by the position of the spermathecal pores in front of the chaetae in X–XIII. Stylodrilus coreyi >sp. n. differs from congeners having simple-pointed chaetae and elongate atria primarily by the structure of the male duct and the large clusters of prostate cells. Streams and wetlands of Southeastern USA have a remarkably high diversity of endemic lumbriculids, and these poorly-known invertebrates should be considered in conservation efforts.
机译:从北美东南部的漫滩渗漏和小溪中采集到了三种新的mb科。其中一些栖息地是天然酸性的。 Sylphella puccoon > gen。 ,> sp。 n。在X–XI处有孔生性雄性导管,在XII–XIII中有精子细胞。肌肉,球形的房室壶腹和尖锐的阴茎鞘区分了这种单型新属,与其他具有类似生殖器官排列的含脂属。 Cookidrilus pocosinus > sp。 n。在生殖器官的排列上类似于它的两个地下同龄古生物,但在X–XIII中,eta骨前面的精囊孔的位置容易区分。 Stylodrilus coreyi > sp。 n。与具有简单尖头角膜和细长心房的同类细胞的主要区别在于雄性导管的结构和前列腺细胞的大簇。美国东南部的溪流和湿地的地方生鳞屑非常多,在保护工作中应考虑这些鲜为人知的无脊椎动物。

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