The hydrobioid freshwater gastropods (Caenogastropoda, Truncatelloidea) of Greece: new records, taxonomic re-assessments using DNA sequence data and an update of the IUCN Red List Categories

Abstract

Hydrobioid freshwater gastropods were collected from mainland and insular Greece. Several threatened taxa, such as Graecoanatolica vegorriticola, Pseudamnicola negropontina, Pseudamnicola pieperi, Pseudobithynia eubooensis and Pseudoislamia balcanica, were recorded from new localities. Trichonia trichonica, which has been considered extinct from its type locality for the last twenty eight years, was re-discovered, whereas the presence of Daphniola exigua, G. vegorriticola, Marstoniopsis graeca, P. pieperi and Pseudobithynia trichonis in their type localities was verified. The taxonomic status of P. negropontina and the newly discovered populations of G. vegorriticola was elucidated using COI sequence data. The new data recorded during this survey indicate that the IUCN status of some Greek endemic hydrobioids needs to be updated.

Local endemic and threatened freshwater hydrobiids of Western Greece: elucidation of anatomy and new records

“…The number of the species' localities is now four. These records corroborate the earlier suggestion (Radea et al 2013) that P. balcanica is more widespread than previously thought and that the species inhabits both lentic and lotic waters.…”

“…Additionally, it was re-found in the springs of Aghia Sophia, where it had been recorded for the first time by Radea et al (2013). The number of the species' localities is now four.…”

“…However, the freshwater fauna of Greece, especially Truncatelloidea, remains poorly inventoried; the distributional information on endemic and threatened species is often out of date or unavailable (Radea et al 2013, daRwall et al 2014.…”

“…Data on the distribution of these species have been provided by the above authors as well as by (2007), szaRowsKa & falnIowsKI (2004, 2011 and Radea et al (2013).…”

A new species of Pseudamnicola Paulucci, 1878 from Kithira Island, Greece

“…szArowskA & FAlniowski 2008, FAlniowski et al 2012) and all the characters are highly variable within species, the variation ranges overlapping between the species (FAlniowski 1987). For the Greek Pseudamnicola molecular data -mostly mtDNA cytochrome oxidase subunit I (COI) -are already available for several taxa (szArowskA et al 2006, 2015, szArowskA & FAlniowski 2011, rAdeA et al 2013, 2016. Molecular data suggest that the number of species of the Greek Pseudamnicola described so far is underestimated -at least 16 lineages of presumably species rank have been found in Greece (szArowskA et al 2015).…”