Integrative taxonomy and biogeography of the genus Bulbaeolidia (Nudibranchia: Aeolidida)

摘要

Bulbaeolidia Carmona, Pola, Gosliner & Cervera, 2013 is the most recently described genus within the family Aeolidiidae Gray, 1827. It is composed of four species: B. alba (Risbec, 1928), originally described from New Caledonia; B. japonica (Eliot, 1913), from Japan; B. sulphurea Caballer & Ortea, 2015, from the Galapagos Islands and B. oasis Caballer & Ortea, 2015, with Cuba as the type locality. This paper aims to improve the systematics of the genus Bulbaeolidia by expanding the original descriptions of these four species, giving the first accounts of their reproductive systems, and in addition describing one new species, B. paulae n. sp. from Hawaii. A molecular phylogeny based on H3, COI and 16 S genes for all five species of Bulbaeolidia is presented. Maximum-likelihood, Bayesian inference and species-delimitation analyses were carried out and support the distinctness of these species. The geographical distribution of the genus is expanded by new records.