A new hyporheic Monchenkocyclops Karanovic, Yoo & Lee, 2012 (Crustacea: Copepoda) from Turkey with special emphasis on antennulary homology

Abstract

Both sexes of Monchenkocyclops mehmetadami n. sp. were described from hyporheic freshwater habitat in Turkey. The new species can easily be distinguished from the other four species in the genus by having three setae on the inner margin of the second endopodal segment of the first and second swimming legs and four setae on the inner margin of second endopodal segment of the third and fourth swimming legs. The setation patterns of female and male antennules of the new species are analyzed with reference to the hypothetical 28-segmented antennule of ancestral copepod and the homology of the antennulary segments is determined in both sexes. Paraphyletic status of the genus is briefly discussed. RÉSUMÉ Un nouveau Monchenkocyclops Karanovic, Yoo & Lee, 2012 hyporhéique de Turquie (Crustacea: Copepoda), avec l'étude des homologies sur les antennules. Mâles et femelles de Monchenkocyclops mehmetadami n. sp. sont décrits d'un habitat d'eau douce hyporhéique en Turquie. La nouvelle espèce peut facilement être distinguée des quatre autres espèces du genre par ses trois soies sur le bord interne du deuxième segment endopodal des premières et secondes pattes natatoires, et ses quatre soies sur le bord interne du deuxième segment endopodal des troisièmes et quatrièmes pattes natatoires. Les patrons de distribution des soies sur les antennules des femelles et des mâles de la nouvelle espèce sont analysés en référence au plan de base hypothétique de l'antennule chez les copépodes, avec 28 segments, et les homologies des segments antennulaires sont déterminées chez les deux sexes. Le statut paraphylétique du genre est brièvement discuté.

Determination of Zooplankton Fauna in the Running Waters of Arsuz District of Hatay Province

“…M. mehmetadami and K. xanthi, discovered in this study and recently added to the zooplankton fauna in inland waters of Turkey, were identified for the first time from interstitial samples from Turkey (Karaytuğ et al, 2018;Bruno and Cottarelli, 2015). K. xanthi was found for the second time in the Sarıseki stream and reeds (Bozkurt, 2017), and the third time in the well water in the Yayladağı district (Bozkurt, 2022).…”

Investigation of Groundwater Zooplankton Fauna from Water Wells in Kilis Province from Türkiye

“…It was reported that M. mehmetadami (Karaytug et al, 2018) and K. xanthi (Bruno & Cottarelli, 2015) were identified first of all from the hyporheic fauna by Karaytug et al (2018) and Bruno & Cottarelli (2015) respectively. For this reason, the ecological and habitat characteristics of the newly discovered species, which were thought to be hyporheic due to their habitat characteristics, have not been determined yet.…”