Unexplored Character Diversity in Onychophora (Velvet Worms): A Comparative Study of Three Peripatid Species Oliveira, Ivo de Sena ; Franke, Franziska Anni ; Hering, Lars ; Schaffer, Stefan ; Rowell, David M. ; Weck-Heimann, Andreas ; Monge-Nájera, Julián ; Morera-Brenes, Bernal ; Mayer, Georg Abstract Publication: PLoS ONE Pub Date: December 2012 DOI: 10.1371/journal.pone.0051220 Bibcode: 2012PLoSO...751220O