A new hydrobiid species (Caenogastropoda, Truncatelloidea) from insular Greece

Abstract

Daphniola dionesp. nov., a valvatiform hydrobiid gastropod from Western Greece, is described based on conchological, anatomical and molecular data. D. dione is distinguished from the other species of the Greek endemic genus Daphniola by a unique combination of shell and soft body character states and by a 7–13% COI sequence divergence when compared to congeneric species. The only population of D. dione inhabits a cave spring on Lefkada Island, Ionian Sea.

Gafaita gafaitensis gen. et sp.n. a new hydrobiid snail (Gastropoda: Hydrobiidae) from Morocco

“…investigations in Morocco or in North Africa as whole, such endeavours are actually a stringent need. Because of their limited dispersal abilities and high degree of habitat specialization, most of these springsnails are narrow-range endemics and face a high risk of extinction (Radea et al, 2021).…”

Description of a new valvatoid Pikasia smenensis n. gen. n. sp. (Gastropoda, Hydrobiidae) from Morocco

“…The valvatiform hydrobiid is a group of minute gastropods with depressed trochiform shells resembling those of the genus Valvata O. F. Müller, 1773. Owing to their limited dispersal abilities and high degree of habitat specialization, most springsnails are narrow-range endemics and face a high risk of extinction (Delicado et al, 2019;Radea et al, 2021). To date, five valvatoid species are known to occur in Morocco, four crenobiotic species that are micro-endemic to their type localities, namely Ifrania zerroukansis Glöer, Mabrouki and Taybi, 2020, Fessia aouintii Glöer, Mabrouki and Taybi, 2020, Islamia tiferitensis Glöer, Mabrouki and Taybi, 2020and I. karawiyiensis Mabrouki, Glöer and Taybi, 2021, and the stygobiont Rifiya yakoubii Ghamizi, 2020 inhabits the phreatic waters of the southern border of the Rif region, upstream of Moulouya, Sebou and Loukkos basins.…”

New data on the valvatiform-shelled Hydrobiidae (Caenogastropoda, Truncatelloidea) from southern Greece

“…described D. magdalenae Falniowski, 2015 from the sulphide Melissotripa Cave in Thessalia. Finally,Radea et al (2021) described D. dione Radea, Lampri, Bakolitsas & Parmakelis, 2021 from the Levkas Island (Ionian Sea), using morphology and molecular data. At two localities in North Peloponnese (1 and 2) we found another Daphniola taxon, whose morphology and COI sequences do not comply with any known Daphniola species.…”