Figure 1From: Comprehensive phylogenetic analysis of all species of swordtails and platies (Pisces: Genus Xiphophorus) uncovers a hybrid origin of a swordtail fish, Xiphophorus monticolus, and demonstrates that the sexually selected sword originated in the ancestral lineage of the genus, but was lost again secondarilyMap of the distributions of Xiphophorus species. (a) Geographical distributions of all described 26 species in the genus Xiphophorus including the four newly described species – X. monticolus, X. mixei, X. kallmani and X. mayae (colored in blue) and two species of a putatively hybrid origin, X. monticolus and X. clemenciae (in bold). (b) Geographical distributions of three species in the clemenciae clade (maps are modified from [2, 58]).Back to article page