Friedman M M, Strickler J R
Proc Natl Acad Sci U S A. 1975 Oct;72(10):4185-8. doi: 10.1073/pnas.72.10.4185.
Ultrastructural studies of the mouthparts of the calanoid copepod Diaptomus pallidus have revealed the presence of numerous chemoreceptors, and the apparent absence of mechanoreceptors. The setae contain no muscles, and the setules are noncellular extensions of their chitin wall. This allows a new insight into the selective feeding of zooplankters.
对桡足类哲水蚤苍白哲水蚤口器的超微结构研究表明，存在大量化学感受器，且明显没有机械感受器。刚毛不含肌肉，小刺是其几丁质壁的非细胞延伸部分。这为浮游动物的选择性摄食提供了新的见解。
