Not really sure if the ID can be resolved here, but whatever, this was a pretty neat find. This tiny fish was about 1 cm and found swimming in a very warm, very shallow puddle in a road rut that was filling with water at high tide. Not a sanddab, as I'd first guessed, since that's a lefteye flounder and this is clearly a righteye.
A young winter flounder (Psuedopleuronectes americanus) found in the shallows while doing a fish count.
Large summer flounder or fluke (Paralichthys dentatus) just after it bolted from hiding underneath me,
A flatfish is a member of the order (Pleuronectiformes) of ray-finned demersal fishes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on one side of the head, one or the other migrating through and around the head during development. Some species face their left sides upward, some face their right sides upward, and others face either side upward.