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首页> 外文期刊>Zootaxa >Two new species of the cheilostome bryozoan Cheilopora from the Aleutian Islands
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Two new species of the cheilostome bryozoan Cheilopora from the Aleutian Islands

机译：阿留申群岛上的两种新物种的螯嘴巨嘴龙Cheilopora

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摘要

Two new species of Cheilopora-C. peristomata and C. elfa-are described from the shallow water around Adak and Amchitka of the Andreanof and Rat island groups of the Aleutian Islands. Zooids of both new species have cormidial peristomes, composed by the distal (originating from neighbouring zooid) and proximal lappets. In contrast to previously described species, the strongly elevated peristomial lappets defining the secondary orifice confer the overall shape of an incomplete circle with deep U-shaped proximolateral pseudosinuses. Depending on angle of view, this gives a campanuliform or trifoliate outline to the secondary orifice, by which the new species differ from congeners. Together with previous discoveries from the Aleutians, these two new Cheilopora species are indicative of incomplete knowledge of the marine biodiversity of the region, including the distinctive character of the bryozoan fauna. There is a need for intensification of taxonomic effort along the island arc.
机译：Cheilopora-C的两个新种。 peristomata和C. elfa-是从阿留申群岛的Andreanof和Rat岛群的Adak和Amchitka周围的浅水区描述的。两种新物种的动物群都具有角膜外膜，由远端（起源于邻近的动物群）和近端毛毯组成。与先前描述的物种相反，限定次生孔的强烈升高的周缘覆膜赋予不完整圆形的整体形状，并具有深的U形近外侧假窦。根据视角的不同，这会在次级孔口上形成一个钟形或三叶形轮廓，从而使新物种不同于同类生物。再加上阿留申人以前的发现，这两个新的千足纲物种表明该地区海洋生物多样性的知识不完整，包括苔藓动物区系的独特特征。需要加强沿岛弧的生物分类工作。

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