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The term teratology is generally defined as "the study of morphological anomalies of an entire organism or of one or more parts of it". Regarding the order Nudibranchia, there are only few examples and information of nudibranchs with morphological anomalies. The teratologies are due to environmental or genetic causes, but in any case, they are not...
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A peculiar eolid nudibranch showing an unknown chromatic array was found in a rocky bottom of Santa Maria al Bagno, in the Salento peninsula, Ionian Sea (Central Mediterranean Sea). This specimen, initially identified as Piseinotecus sp., was observed in situ and photographed while feeding and laying eggs close to individuals belonging to the Medit...
The present note documents the finding of two species of marine heterobranch seaslugs along the central-eastern coast of Sicily (Italy, central Mediterranean): the sacoglossan Calliopaea bellula and the nudibranch Tayuva lilacina. These two species show a wide geographical range (C. bellula is present from Norway to the Black Sea, while T. lilacina...
A scientific article (Galià-Camps et al., 2022) has been recently published in which the validity of a “forgotten” sea slug species (Mollusca, Gastropoda, Nudibranchia) was reinstated, as it had been considered a synonymous of other Mediterranean species. Here I tell the story of Dendrodoris temarana Pruvot-Fol, 1953 in the scientific literature an...
The family Discodorididae (Mollusca, Gastropoda, Nudibranchia) is one of the most numerous nudibranch families in terms of species and includes well-known genera in European waters such as
Onchidoris muricata is a widespread shell-less species of nudibranch molluscs, which has unique for Gastropoda skeletal elements – subepidermal calcite spicules. The general and fine morphology of the spicules, as well as their maturation process in ontogenesis, have been studied in detail by authors. The uniqueness of spicules lies in their intrac...
