Cochlorina is a genus of tropical arboreal land snails endemic to Brazil, comprising eight poorly studied species. The present study is aimed to redescribe all species of the genus, through detailed morphological investigations. Based on new morphological data, Cochlorina lateritia is here proposed as a junior synonym of C. navicula, three new species are proposed: Cochlorina andradeae sp. nov., Cochlorina mainesae sp. nov., Cochlorina parkis sp. nov, and Navicula is proposed as a separate genus to Cochlorina. A dichotomous key for Cochlorina and Navicula species is presented. The importance of the anatomy of the mantle folds as an indicator of fecal pellets shaping is discussed.
Planorbella duryi (Wetherby, 1879) is a North American planorbid, commonly found in the aquarium trade as an ornamental aquatic snail, or even as a pest due to its prolific reproduction. This species has been introduced to other regions through human activities. Tt has been present in Europe for several decades, primarily in indoor, managed environments; occurrences beyond these settings are associated with milder climates or thermal waters. Its presence in Serbia was first recorded in 2022, in pools within the tropical greenhouse in Belgrade. In this article, we present the first records of P. duryi in 7 thermal waterways in eastern, western and northern Serbia, near the cities of Ni & scaron;, Knja & zcaron;evac, Pirot, Mionica, and Novi Sad. We provide descriptions of the habitats colonized by P. duryi across Serbia, briefly discuss its morphology and anatomy, and explore its size variation among different localities. We also discuss possible pathways for its introduction into Serbia's thermal waters and suggest that the origin of the Serbian populations is likely through aquarists, given its frequent association with other typical aquarium species. Additionally, we present hypotheses regarding the potential causes of the observed size variations. To date, P. duryi is one of only 2 non-native species of freshwater snails in Serbia that occur in the wild exclusively in thermal waters.
The Madeira Archipelago harbours a rich land snail fauna, with an exceptionally high number of endemic taxa that often have very restricted ranges. We here revise a group of species that are currently considered to belong to Serratorotula Groh & Hem-men, 1986. Members of this small group of Geomitrini are endemic to Porto Santo and some of its satellite islets and have a strongly ornamented shell. Our results indicate that Serratorotula should be restricted to the fossil Serratorotula gerberi (Groh & Hemmen, 1986) from Porto Santo. For the other two species formerly classified in Serratorotula, the new genus Robertcameronia gen. nov. is proposed; R. calensis sp. nov. is described as the third species in the new genus.
Himalocharopa machhapuchhre gen. nov. sp. nov. is a minute punctoid snail from Nepal characterized by a depressed conical-globular shell with tightly coiled, rounded whorls, a protoconch with strong radial ribs and weak irregular, discontinuous spiral wrinkles between them, a teleoconch with strong radial ribs, and a wide and concentric umbilicus. Its phylogenetic relationships and biogeographic relations remain to be clarified.
