New species of Acoela from the Mediterranean, the Red Sea, and the South Pacific

摘要

Eight new species of Acoela are reported including the first Acoela recorded from New Caledonia and the first acoel described from volcanic carbon dioxide vents. Pharyngia furva gen. et sp.nov. (Isodiametridae) and Philactinoposthia brevis sp.nov. (Actinoposthiidae) from the Red Sea; Childia curinii sp.nov. (Childiidae), Philactinoposthia ischiae sp.nov. and Philactinoposthia multipunctata sp.nov. from the Mediterranean; Philactinoposthia novaecaledoniae sp.nov., Childia aculifera sp.nov. and Solenofilomorpha justinei sp.nov. (Solenofilomorphidae) from the South Pacific are described. Nucleotide sequences for the nuclear ribosomal 18S rRNA, 28S rRNA and the mitochondrial COI genes were determined for the new species and used in a Bayesian molecularphylogenetic analysis.