Ungaliophiinae is a subfamily of booid snakes containing two genera, Ungaliophis (two species) and Exiliboa (one species). They are small constrictors that are found in Central and South America from southern Mexico to Colombia. They eat mostly lizards and frogs and have been poorly studied.
These snakes were formerly thought to be closely related to two other genera, Tropidophis and Trachyboa; all four genera were united in the family (Tropidophiidae) based on the presence of a tracheal lung and the absence of a left lung. However, Ungaliophis and Exiliboa are now known to be more closely related to the booids,[1] whereas Tropidophis and Trachyboa are now known to be more closely related to the American pipe snake (Anilius scytale).[2] Within the Booidea, Ungaliophis and Exiliboa are thought to be most closely related to the North American Charina and Lichanura boas.[3]
^Wilcox, Thomas P; Zwickl, Derrick J; Heath, Tracy A; Hillis, David M (October 2002). "Phylogenetic relationships of the dwarf boas and a comparison of Bayesian and bootstrap measures of phylogenetic support". Molecular Phylogenetics and Evolution. 25 (2): 361–371. doi:10.1016/s1055-7903(02)00244-0. PMID 12414316.
^Vidal, Nicolas; Delmas, Anne-Sophie; Hedges, S. Blair (2007). "The higher-level relationships of alethinophidian snakes inferred from seven nuclear and mitochondrial genes" (PDF). In Henderson, Robert W.; Powell, Robert (eds.). Biology of the Boas and Pythons. Eagle Mountain Publishing. pp. 27–33. ISBN 978-0-9720154-3-1.
^Graham Reynolds, R.; Niemiller, Matthew L.; Revell, Liam J. (February 2014). "Toward a Tree-of-Life for the boas and pythons: Multilocus species-level phylogeny with unprecedented taxon sampling". Molecular Phylogenetics and Evolution. 71: 201–213. doi:10.1016/j.ympev.2013.11.011. PMID 24315866.
Ungaliophiinae is a subfamily of booid snakes containing two genera, Ungaliophis (two species) and Exiliboa (one species). They are small constrictors...
as a superfamily, family, or subfamily) is arbitrary. The subfamily Ungaliophiinae was formerly made up of four genera. Two of them (Tropidophis and Trachyboa)...
more closely related to the boids, and are classified in the subfamily Ungaliophiinae. There are a relatively large number of fossil snakes that have been...
of the dwarf bromeliad boa Ungaliophis panamensis (Squamata, Boidae, Ungaliophiinae) in Costa Rica and Panama". Neotropical Biology and Conservation. 16...
and an American clade made up of Charina (Lichanura included) and the Ungaliophiinae. This species was long regarded as a member of the family Pythonidae...
snakes from the Palaeocene of São José de Itaboraí, Brazil Part III. Ungaliophiinae, Booids incertae sedis, and Caenophidia. Summary, update and discussion...
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