标题：Parahelicops, Pararhabdophis, paraphyly : phylogenetic relationships among certain Southeast Asian natricine snakes (Hebius). (American Museum novitates, no. 3906)
摘要：We investigate the phylogenetic relationships of two poorly known Natricinae, Parahelicops and Pararhabdophis, for which we obtained nucleotide sequence data from one mitochondrial gene (cytochrome b) and three nuclear genes (CMOS, NT3, and RAG1). Maximum parsimony, maximum likelihood, and combined and partitioned Bayesian analyses suggest that both Parahelicops and Pararhabdophis are embedded within the genus Hebius. To align classification with phylogeny, we synonymize Parahelicops and Pararhabdophis with Hebius.
