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Echinoderes vulcanicus sp. nov. from the active marine volcano Piip – the first representative of the Kinorhyncha in the Bering Sea (Kinorhyncha: Cyclorhagida)
Zoologischer Anzeiger ( IF 1.4 ) Pub Date : 2020-08-30 , DOI: 10.1016/j.jcz.2020.08.006
Andrey V. Adrianov , Anastassya S. Maiorova

A new species of echinoderid kinorhynchs, Echinoderes vulcanicus sp. nov. collected from detritus washed off deep-water sponges collected at the slope of active marine volcano Piip in the Bering Sea, North-West Pacific, is described and illustrated using light and scanning electron microscopy. This new representative of Echinoderes, the most specious kinorhynch genus, is characterized by a unique set of characters and is easily distinguished from the other congeners. This species is well recognized by the structure of the terminal segment having large, broadly rounded sternal plates prominently extending beyond shorter tergal extensions. Both sternal and tergal plates of this segment have prominent terminal fringe with long and thick tips. The second trunk segment bears a pair of adhesive tubes; trunk segment 5 with pair of tubes in lateroventral position; acicular lateroventral spines on trunk segments 6–9; acicular middorsal spines on trunk segments 4–8; trunk segment 10 with pair of tubules in lateroventral position; males possess three pairs of penile spines. E. vulcanicus sp. nov. constitutes the first kinorhynch species found at the top of the active marine volcano and the first representative of the Kinorhyncha in the Bering Sea.



中文翻译:

Echinoderes vulcanicus SP。十一月 来自活跃的海洋火山Piip –白令海Kinorhyncha的第一位代表(Kinorhyncha:Cyclorhagida)

棘皮动物的新种,棘皮动物棘皮动物。十一月 使用光学和扫描电子显微镜描述和说明了从碎屑中收集的碎屑,这些碎屑是用深海海绵洗掉的,该深水海绵是在西北太平洋白令海的活动海洋火山Piip斜坡上收集的。棘皮动物的新代表,最有可能出现的亲戚属,以一组独特的字符为特征,很容易与其他同类动物区分开。该物种通过末端区段的结构得到了很好的认可,末端区段具有宽大的,圆形的胸骨板,突出地延伸超过较短的三叉骨延伸。该段的胸骨和总板均具有突出的末端边缘,末端长而厚。第二主干段带有一对胶管。躯干段5,一对管在后腹位置;躯干节段6-9上的针状后腹棘;躯干节段4-8上的针状中背棘;躯干段10,具有一对位于后腹位置的小管;雄性有三对阴茎。大肠杆菌sp。十一月 构成了在活跃的海洋火山顶部发现的第一个基诺希奇物种,并且是白令海的Kinorhyncha的第一个代表。

更新日期:2020-09-24
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