Alonso Miguel, Dos Santos-Silva Edinaldo N, Jaume Damià
Departamento de Recursos Hídricos y Ciencias Ambientales, Facultad de Ciencias Químicas, Universidad de Cuenca, Cuenca, Ecuador.
Ecology Section, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain.
Zookeys. 2017 Sep 14(697):59-71. doi: 10.3897/zookeys.697.12204. eCollection 2017.
is described from a reservoir on the Amazonian slope of the Ecuadorian Andes. The new species is unique among diaptomid calanoid copepods in the display of hypertrophied, symmetrical wing-like extensions at each side of the female composite genital somite. Furthermore, it displays a female urosome reduced to only two somites due to the incorporation of abdominal somites III and IV to the composite genital double-somite, and a male right fifth leg with the outer spine of second exopodal segment recurved and implanted proximally on margin. It differs from any other in the display of a large rectangular lamella on proximal segment of exopod of male right fifth leg. The species is currently known only from Mazar reservoir, a eutrophic water body placed above 2127 m a.s.l. on the River Paute (Cañar Province; southern Ecuador), where it is the most common crustacean in the water column.
该物种是在厄瓜多尔安第斯山脉亚马逊山坡的一个水库中被描述的。在挠足亚纲哲水蚤目桡足类中，这个新物种独一无二，其雌性复合生殖节两侧有肥大的对称翼状延伸物。此外，由于腹部第三节和第四节并入复合生殖双节，其雌性尾节仅缩减为两个体节，雄性右第五胸足外肢第二节的外刺弯曲并近端着生于边缘。它与其他任何物种的不同之处在于雄性右第五胸足外肢近端节上有一个大的矩形薄片。该物种目前仅在马扎尔水库被发现，马扎尔水库是一个位于帕乌特河（卡尼亚尔省；厄瓜多尔南部）海拔2127米以上的富营养水体，它是该水体水柱中最常见的甲壳类动物。
