Hanyang University, College of Natural Sciences, Department of Life Science, Seoul 04763, Republic of Korea. .
Zootaxa. 2021 Oct 12;5051(1):319-345. doi: 10.11646/zootaxa.5051.1.14.
Marine cyclopoids, and especially cyclopinids, are poorly studied because their diversity is highest in marginal habitats, such as intertidal interstitial and anchialine caves, or in highly inaccessible abyssal and hadal depths. Two new cyclopinids are described here, both from two different sandy beaches in Korea. Among four species currently recognized in the genus, Heterocyclopina koreaensis sp. nov. is most closely related to H. vietnamensis Plea, 1969 from similar habitats in Vietnam. Koreacyclopina wellsi gen. et sp. nov. shares its sexually dimorphic third exopodal segment of the second leg with the Antarctic genus Pseudocyclopina Lang, 1946, but differs from all six known species by numerous features, some of which are observed for the first time within cyclopinids. Both Korean species belong to the family Hemicyclopinidae, but the monophyly of this group has not yet been demonstrated.
海洋桡足类，特别是哲水蚤目，研究得很少，因为它们的多样性在边缘生境中最高，如潮间带的间隙和向海洞穴，或在极难到达的深海和超深渊。这里描述了两种新的哲水蚤目，都来自韩国的两个不同的沙滩。在目前公认的四个属种中，新种 Heterocyclopina koreaensis sp. nov. 与来自越南相似生境的 H. vietnamensis Plea, 1969 最为接近。Koreacyclopina wellsi gen. et sp. nov. 与南极属 Pseudocyclopina Lang, 1946 共享第二对腿的性二态第三外肢节，但与所有已知的 6 个种有许多不同的特征，其中一些是在哲水蚤目中首次观察到的。这两个韩国种都属于半环足科，但该组的单系性尚未得到证明。
