Two new species of Pogonophora from the arctic mud volcano off northwestern Norway
Two new species of Pogonophora from the arctic mud volcano off northwestern Norway
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来自挪威西北部北极泥火山的两种新Pogonophora物种
DOI：
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发表时间：
2000
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影响因子：
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通讯作者：
R. Smirnov
中科院分区：
文献类型：
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作者：
R. Smirnov
摘要 Håkon Mosby 号和 Logachev 教授号科考船于 1995 年至 1996 年在挪威海收集的 Pogonophora 包含两个新种，分别属于 Scleolinum 和 Oligobrachia 属。这两个物种都是在挪威西北部大陆坡的“泥火山”类型异常冷泉区域获得的。核盘菌 sp.十一月与同类物种的不同之处在于，其后体相当长，节段很少（4-5），管子两端开口，并强烈折叠，呈现规则的 S 形弯曲。少臂鱼 haakonmosbiensis sp.十一月通过一系列特征很好地区分，特别是前两个节上缺乏腺斑，这对于寡臂亚纲来说是非常不寻常的。给出了串珠菌亚纲 Scleolinum 中单个属的所有物种的详细比较。
Abstract Collections of Pogonophora made by the research vessels Håkon Mosby and Professor Logachev in the Norwegian Sea in 1995–1996 contain two new species belonging to the genera Sclerolinum and Oligobrachia. Both species were obtained on the continental slope northwest of Norway in the area of an anomalous cold seep of a “mud volcano” type. Sclerolinum contortum sp. nov. differs from the congeneric species in having a rather long opisthosome with very few segments (4–5) and tubes open at both ends and strongly folded upon themselves to show regular S-bends. Oligobrachia haakonmosbiensis sp. nov. is well distinguished by a set of features, especially by the lack of glandular patches on the first two segments, that is very unusual for Oligobrachia. A detailed comparison of all species of the single genus in the subclass Monilifera, Sclerolinum, is given.