Anolis polylepis Many-scaled Anole
Some other names for this species:
Golfo Dulce Anole
Esquinas Rainforest Lodge, Golfito region, Puntarenas province, Costa RicaSeptember 26, 2001
Many-scaled Anole (Anolis polylepis)
The diamond pattern shows that this is a female Anolis polylepis. I had earlier identified this lizard as Anolis tropidolepis, but Savage's great Costa Rica herps book set me straight.

This lizard was photographed on a herping trip with GreenTracks. Here is a complete list of the species we found on this GreenTracks trip.

Esquinas Rainforest Lodge, Golfito region, Puntarenas province, Costa RicaSeptember 29, 2001
Many-scaled Anole (Anolis polylepis)
This individual was posing nicely in the greenery just outside my cabin at the Esquinas Lodge.
Online references:
Printed references: