A second new Amphipod species from the Peynirlikönü Cave (EGMA Cave): Gammarus egmao sp. nov. (Crustacea: Amphipoda)

Year 2019, Volume: 36 Issue: 3, 201 - 210, 15.09.2019

Murat Özbek M. Oktar Güloğlu

https://doi.org/10.12714/egejfas.2019.36.3.01

Abstract

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Another new amphipod species, Gammarus egmao sp. nov., from Peynirlikönü Cave [Evren Günay Mehmet Ali Özel (EGMA) Cave] was identified. The specimens of the new species were sampled from 350 m inside of the cave entrance. This is the second species identified from the cave in addition to Gammarus ustaoglui Özbek and Güloğlu, 2005. The newly identified species has the following characteristic features: a) small eyes, b) 2- segmented accessory flagellum of antenna II, c) aesthetascs on the flagellar segments of antenna I, d) reduced armaments in distal part of palp of maxilla I e) short inner ramus of uropod III and reduced setation on margins of rami of uropod III. A detailed description of holotype female and illustrations of the appendages were presented. Additionally, differences from the related species were discussed.

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Keywords

Amphipoda, Turkey, new species, EGMA Cave, troglobitic amphipod

Peynirlikönü Mağarası (EGMA Mağarası)’ndan bir diğer yeni Amphipod türü: Gammarus egmao sp. nov. (Crustacea: Amphipoda)

Abstract

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Peynirlikönü Mağarası’ndan [Evren Günay Mehmet Ali Özel (EGMA) Düdeni] bir diğer yeni amphipod türü, Gammarus egmao sp. nov., tanımlanmıştır. Yeni türe ait bireyler mağaranın girişinden 350 m içeriden örneklenmiştir. Bu, Gammarus ustaoglui Özbek ve Güloğlu, 2005 türüne ilave olarak, mağaradan tanımlanan ikinci yeni türdür. Yeni tanımlanan tür şu karakteristik özelliklere sahiptir; a) küçük gözler, b) ikinci antende iki segmentli yardımcı flagella, c) I. antenin flagellasında astetasklar (çubuk şeklinde yapılar), d) I. maksil palpinin uç kısmında azalmış diken sayısı, e) çok kısalmış III. üropodun iç lobu ve III. üropodun her iki lobunun iç ve dış kenarlarında azalmış tüylenme. Holotip dişinin detaylı tanımlanması ve ekstremitelerin çizimleri çalışmada sunulmuştur. İlave olarak, benzeri türlerle olan farklılıklar tartışılmıştır.

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Keywords

Amphipoda, yeni tür, EGMA Mağarası, troglobitic amfipod, Türkiye

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