A new species and a new record of Chelidonura from the Red Sea (Cephalaspidea: Aglajidae)

Examination of recently collected specimens, accompanied by colour photographs, of two species of aglajids from the Red Sea reveals one to be new to science and the second to be a new record for the region. The new species Chelidonura livida n. sp. is formally described and the taxonomic positions of other species confused with it are discussed. The Red Sea aglajid fauna is briefly reviewed: to date five species are recognized, belonging to three genera, of which three species appear to be endemic.