Lepas Lalandii sp. Nov: A Goose Barnacle (Crustacea) Species from DNA Barcoding

Abstract

We analysed DNA based phylogenetic relationships of selected species of pedunculated barnacles, using species from the genus Chthamalus (order: Balanomorpha) as outgroup, to estimate the position of a new species of goose barnacle. Ninetythree individuals from 17 ingroups (including seven genera) and five outgroup species were studied. The pedunculated species included taxa from the order Scalpellomorpha a) superfamily: Lepadoidea (family Lepadidae; genera Conchoderma, Dosima, Lepas and family: Poecilasmatidae; genera Octolasmis and Poecilasma), and b) order Pollicipedomorpha (family: Pollicipedidae; genera Capitilum and Pollicipes). As the ingroup members represent a polyphyletic assemblage, our analysis was limited to estimating the status and the genetic relationship of the new species. We show that Lepas lalandii sp. nov. is monophyletic and a member of the Lepadidae, but separated from other Lepas. Full descriptions of Lepas lalandii sp. nov. will follow detailed morphological studies. This is conceivably the most extensive dataset for the individuals studied.