So I saw a group of fish today that I couldn't ID. They were located in the lobby tank of the Mirage in Las Vegas.
As far as I can tell they are a Pseudanthias sp. About 6-7" long, and a deep purple color like a P. tuka or P. pascalus. However, these guys have a vivid vellow anal and rear (soft) dorsal fin, which I have not seen in either of these species. There also appeared to be a small black area near the head and eye. The tail is lunate and purple. They also did not have the pointed snout that P. pascalus and tuka do. They spent all their time near the top of the tank in the open, and I saw a few pick food out of the water. Clearly zooplanktivores. Any ideas? Come to think of it I am not sure they are even a Pseudanthias sp., but it was the closest looking genus I could come up with. I have looked through every fish atlas I own with no luck.
Sorry but it was impossible to get a photo. They don't let you get within 10 feet of the tank.
As far as I can tell they are a Pseudanthias sp. About 6-7" long, and a deep purple color like a P. tuka or P. pascalus. However, these guys have a vivid vellow anal and rear (soft) dorsal fin, which I have not seen in either of these species. There also appeared to be a small black area near the head and eye. The tail is lunate and purple. They also did not have the pointed snout that P. pascalus and tuka do. They spent all their time near the top of the tank in the open, and I saw a few pick food out of the water. Clearly zooplanktivores. Any ideas? Come to think of it I am not sure they are even a Pseudanthias sp., but it was the closest looking genus I could come up with. I have looked through every fish atlas I own with no luck.

Sorry but it was impossible to get a photo. They don't let you get within 10 feet of the tank.