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A medium sized trunk-ground ecomorph, Anolis gingivinus spends most of its time perching on tree branches and trunks at approximately 4.8 m above ground. Endemic to the Anguilla and Sombrero Island banks, Anolis gingivinus occurs throughout the Lesser Antilles islands of Anguilla, St. Martin, St. Barts, and St. Vincent. While A. gingivinus is particularly abundant in the xeric western region of Anguilla, it thrives in a variety of habitats and can be found on virtually every rock and cay throughout the Anguilla Bank. Anolis gingivinus is largely solitary throughout its distribution but co-occurs with A. wattsi pogus in the central hills of St. Martin, where the two species engage in high levels of interspecific competition. St. Martin is also incidentally the location in which A. gingivinus faces the greatest predation risk. Perhaps as a response to these interspecific and predation pressures, A. gingivinus has evolved sophisticated predation avoidance and feeding strategies to optimize its safety and energy intake.
Anolis gingivinus is characterized by olive, light green, or rusty coloration overlaid by a broad middorsal band and a bold light flank stripe from shoulders to groin. Ventral scales range in color from cream to bright yellow, with the coloration being brighter in females. Males possess a well-developed yellow orange dewlap that is speckled with white scales.