Tribe Gambusiini + Supertribe Poeciliini

[Clade 121]

Diagnosis. Members of this clade can be diagnosed by the following not uniquely derived and/or reversed features: (1) anterior section of posterior remnant of infraorbital system absent or opened, forming a shallow groove [6-0]; (2) mandibular canal absent or opened, forming a very shallow groove [10-1]; (3) medial surface of ascending process of premaxilla angled laterally at proximal end, forming a triangle space between proximal ends of ascending processes [11-2]; (4) anterior border of ventral maxilla straight [14-0]; (5) ascending process of parasphenoids in adults short, not reaching pterosphenoids [20- 1]; (6) adult females with first proximal radial of dorsal fin located between neural arches of 13 th and 14 th vertebrae [63-1]; and (7) nine dorsal-fin rays (males and females) [64-1].