In 1923 Thomas Barbour described the species Diaphoranolis brooksi, a species that is currently considered conspecific with Anolis insignis. Apparently, his main reason for recognizing Diaphoranolis as a genus separate from Anolis was the structure of the gular appendage (dewlap), which he judged to be non-extensible. I’m wondering if any of you anolologists who have experience with Anolis insignis have examined the dewlap of that species and can refute or confirm Barbour’s conclusion (or otherwise comment on it). Thanks.

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