Can anyone help me identify these anole species? All photos taken on St. Thomas, USVI, in close proximity to one another.
(click to zoom in)
Each photo is a different individual, but the overall similarity makes me think they are likely the same species, although I could easily be wrong about that (the third one especially looks different from the others). They are dull brown overall with fairly subtle patterning, a light line that runs down their spine, bordered by a darker stripe on either side, and a broad band between the eyes. My best guess is that they are either Brown Anoles (A. sagrei) or Crested Anoles (A. cristatellus). Searching images online, there are some images identified for each species that are quite similar to these, but based just on comparison with those images, I really could go either way. Is there a definitive criteria to help narrow down the species?