Contributions to Zoology, 70 (3) (2001)

Soil-dwelling polychaetes: enigmatic as ever? Some hints on their phylogenetic relationships as suggested by a maximum parsimony analysis of 18S rRNA gene sequences

Emilia Rota , Patrick Martin , Christer Erséus

Dipartimento di Biologia Evolutiva, Università di Siena via P. A. Mattioli 4, IT-53100 Siena, Italyrota@unisi.it

Institut royal des Sciences naturelles de Belgique, Biologie des Eaux douces 29 rue Vautier, B-1000 Bruxelles, Belgiummartin@kbinirsnb.be

Department of Invertebrate Zoology, Swedish Museum of Natural History Box 50007, SE-104 05 Stockholm, Swedenchrister.erseus@nrm.se

Keywords: Terrestrial Polychaeta, Parergodrilus heideri, , Stygocapitella subterranea, , Hrabeiella periglandulata, , 18S rRNA gene, molecular phylogeny, rapid radiation