Yep, Neolamprologus Pulcher (Daffodil Brichardi - Yellow Fin). They are easy to keep. What are you going to keep with them? I have never seen them in anything but Tanganyika tanks.
Here are pictures of a couple of mine before they went into my big Tang tank
You will want to keep them alone. They are shell-dwellers, which means they spawn in shells. Keeping them with different shell-dwellers will cause conflicts since their shells are THEIR territory.