Setal array on the first antennae of a carnivorous marine copepod, Euchaeta norvegica.
Setal array on the first antennae of a carnivorous marine copepod, Euchaeta norvegica.
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肉食性海洋桡足类动物 Euchaeta Norvegica 的第一触角上的齿套阵列。
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
N. Nicoll
中科院分区：
文献类型：
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作者：
J. Yen;N. Nicoll
摘要本文描述了肉食性海洋桡足类Euchaeta norvegica雌性成虫第一触角上的一种独特而优雅的刚毛阵列。刚毛沿沿着3个平面排列，其中成对触角覆盖一个平面。第二个平面被细长的直刚毛覆盖，这些刚毛在触角的近端部分向前突出，在触角的远端尖端向后突出。第一触角的第七节和第八节上的一对细长弯曲刚毛垂直于触角的平面和垂直于直刚毛的平面突出。这2个弯曲的刚毛两侧的2个直刚毛节3和13项目等距天线的前面。它们在每个触角上形成4点四边形刚毛排列。成对的结构可以被设计用于早期检测和定位在桡足类动物的直接环境中在3维中移动的物体。
ABSTRACT A unique and elegant setular array on the first antenna of the adult female stage of the carnivorous marine copepod Euchaeta norvegica is described. The setae are aligned along 3 planes where the paired antennae cover one plane. The second plane is covered by elongate straight setae that project anteriorly at the proximal section of the antenna and posteriorly at the distal tip of the antenna. A pair of elongate curved setae on the seventh and eighth segments of the first antenna projects perpendicular to the plane of the antenna and perpendicular to the plane of the straight setae. These 2 curved setae flanked by 2 straight setae on segments 3 and 13 project equidistant in front of the antenna. They form a 4-point quadrangular setal arrangement on each antenna. The paired structure may be designed for the early detection and localization of objects moving in 3 dimensions in the copepod's immediate environment.