The one on the left approached about 6 inches in length… maybe a Pseudostigmatidae.
One of two snakes we saw, Coniophanes fissidens is a somewhat dull, rear-fanged, litter-dwelling snake. Another species in the same genus, Coniophanes piceivittis, is common in Palo Verde and packs a mean bite.
Near the waterfall pictured yesterday, I discovered several eggs exposed in the stream bed. They are no doubt reptilian, but I’m not positive which type. Given the great abundance of Basilisca vittatum (Jesus Christ Lizard or basilisk) surrounding the stream, the size, and the general lack of turtles, I’d guess they are from a basilisk. Further, given that the eggs are exposed, they are unlikely to be viable… que triste.