Heterandria Agassiz, 1853

Lucinda, Paulo Henrique Franco & Reis, Roberto E., 2005, Systematics of the subfamily Poeciliinae Bonaparte (Cyprinodontiformes: Poeciliidae), with an emphasis on the tribe Cnesterodontini Hubbs, Neotropical Ichthyology 3 (1), pp. 1-60 : 40

Heterandria Agassiz

Heterandria Agassiz, 1853: 135 . Type species: Heterandria formosa Girard, 1859 . Gender: feminine. Type by subsequent designation by Bailey (1952).

Pseudoxiphophorus Bleeker, 1860: 440 . Type species: Xiphophorus bimaculatus Heckel, 1848 . Gender: masculine.

Poeciliodes Steindachner, 1863: 176 [15]. Type species: Poeciliodes bimaculatus Steindachner, 1863 . Type by monotypy. Gender: masculine.

Composition. Heterandria anzuetoi Rosen & Bailey , H. attenuata Rosen & Bailey , H. bimaculata (Heckel) , H. cataractae Rosen , H. dirempta Rosen , H. formosa Girard , H. jonesii (Günther) , H. litoperas Rosen & Bailey , and H. obliqua Rosen.

Distribution. Southern USA to Nicaragua (Atlantic and Gulf drainages) and Guatemala (Pacific drainage).

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].