Radea Canella, Parmakelis Aristeidis, Giokas Sinos
Department of Ecology and Systematics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Panepistimiopolis, Greece.
Department of Biology, University of Patras, 26500, Patras, Greece.
Zookeys. 2016 Dec 13(640):1-18. doi: 10.3897/zookeys.640.10674. eCollection 2016.
A new to science valvatiform hydrobiid, Radea, , from southern Greece, is described and illustrated. The new genus is a tiny gastropod thriving in a stream and is differentiated from the other known European and circum-Mediterranean valvatiform hydrobiid genera by a unique combination of the male and female genitalia features i.e. penis long, flat, blunt, with wide wrinkled proximal part and narrow distal part with a sub-terminal eversible papilla on its left side, bursa copulatrix well-developed, pyriform, fully protruding from the posterior end of the albumen gland and two seminal receptacles respectively. The new monotypic and locally endemic genus is narrowly distributed and its single known population nearby a coastal bustling village is vulnerable to anthropogenic stressors.
描述并图示了一种来自希腊南部、科学界新发现的瓣状淡水螺——拉德螺属（Radea）。这个新属是一种生活在溪流中的小型腹足纲动物，通过雄性和雌性生殖器特征的独特组合，即阴茎长、扁平、钝圆，近端宽且有皱纹，远端窄，左侧有一个近末端可外翻的乳头，交媾囊发达，梨形，从蛋白腺后端完全突出，以及两个受精囊，与其他已知的欧洲和地中海周边瓣状淡水螺属相区分。这个新的单型且地方特有的属分布狭窄，其唯一已知的种群位于一个沿海繁华村庄附近，易受人为压力源的影响。
