Mating and morphology of the copulatory apparatus in Planorbarius corneus (Linnaeus, 1758) (Gastropoda: Pulmonata)

E.V. Soldatenko & A.A. Petrov

Abstract. This paper examines mating behaviour and copulatory mechanics (including insemination) in Planorbarius corneus (Linnaeus, 1758) and presents a revised description of its copulatory apparatus. The taxonomic position of the genus Planorbarius within the Basommatophora is discussed. The study shows that although P. corneus is similar to Planorbella (Seminolina) duryi (Wetherby, 1879) in the structure of the shell, copulatory apparatus, mating behaviour and even mating positions, they have different mechanisms of intromission. The analysis of morphology and mating behaviour does not support a close phylogenetic affinity of Planorbarius to the family Bulinidae P. Fischer et Crosse, 1880 and Planorbidae Rafinesque, 1815.

Key words: molluscs, morphology, insemination, mating behaviour, Planorbarius corneus

Zoosystematica Rossica, 2013, 22(2): 153-164 ▪ Published in print 25 December 2013

https://doi.org/10.31610/zsr/2013.22.2.153 ▪ Open full article

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