In:
ZooKeys, Pensoft Publishers, Vol. 1037 ( 2021-05-18), p. 161-179
Kurzfassung:
Minute caenogastropod brackish-water gastropods, formerly classified as Hydrobia , are important elements of the brackish-water fauna and were objects of intensive study for many years. Until now, five genera have been distinguished, most of them represented by a number of species, but rather indistinguishable without molecular data (cytochrome oxidase subunit I – COI). In the eastern Mediterranean region, they are still poorly studied. In this paper, we present a new species of “ Hydrobia ” from the brackish Moustos spring, Arkadia, eastern Peloponnese, Greece. The shell, protoconch, radula, female reproductive organs, and penis are described and illustrated, together with the molecular (COI) relationships with other hydrobiids. All data confirm that these snails represent a distinct taxon, which must be classified as a new species belonging to a new genus. The formal descriptions are given. The closest, sister taxon is Salenthydrobia Wilke, 2003. The molecularly estimated time of divergence, 5.75 ± 0.49 Mya, coincides with 5.33 Mya, which is the time of the Oligocene flooding that terminated the Messinian salinity crisis. During the latter period, brackish “Lago-Mare” habitats were most probably suitable for the last common ancestor of Salenthydrobia and the newly described genus. Later, the Pliocene flooding isolated the Apennine and Peloponnese populations, promoting speciation.
Materialart:
Online-Ressource
ISSN:
1313-2970
,
1313-2989
DOI:
10.3897/zookeys.1037.64038
DOI:
10.3897/zookeys.1037.64038.figure1
DOI:
10.3897/zookeys.1037.64038.figure2
DOI:
10.3897/zookeys.1037.64038.figure3
DOI:
10.3897/zookeys.1037.64038.figure4
DOI:
10.3897/zookeys.1037.64038.figure5
DOI:
10.3897/zookeys.1037.64038.figure6
DOI:
10.3897/zookeys.1037.64038.figure7
Sprache:
Unbekannt
Verlag:
Pensoft Publishers
Publikationsdatum:
2021
ZDB Id:
2445640-8
SSG:
12