Abstract 'Cryptic'species are an emerging biological problem that is broadly discussed in the
present study. Recently, a cryptic species definition was suggested for those species which …

Molecular and morphological evidence support the view that the widely distributed species
Berthella stellata (Risso, 1826) is a species complex of at least eight different species. The …

Cryptic species are an important concept of modern biodiversity studies and a potential
basis for immensely increasing the amount of biological diversity worldwide; however, the …

The widespread sea hare species Aplysia parvula includes four genetically distinct lineages,
containing a total of ten different species. While the four lineages can be differentiated by …

Rapid ocean warming may alter habitat suitability and population fitness for marine
ectotherms. Susceptibility to thermal perturbations will depend in part on plasticity of a …

Tergipedidae represents a diverse and successful group of aeolid nudibranchs, with
approximately 200 species distributed throughout most marine ecosystems and spanning all …

While the majority nudibranch clades are more species rich in the tropics, the genus
Dendronotus is mainly represented in Arctic and boreal regions. This distribution pattern …

Molecular estimates of phylogenetic relationships rely heavily on multiple sequence
alignment construction. There has been little consensus, however, on how to properly …

A molecular phylogeny is presented for 48 species of the genus Hypselodoris (Family:
Chromodorididae), which incorporated 64 newly sequenced specimens. Hypselodoris is …

A unique example of brackish water fjord-related diversification of a new nudibranch genus
and species Bohuslania matsmichaeli gen. n., sp. n. is presented. There are only few …