OohFeeshy
It's only forever; not long at all...
Yup, I've had a look at shelldwellers.com, and seen nothing matching, and also searched fishbase for anything in the lamprologus genus, and no matches.
Unusual markings-- maybe a Melanochromis of some kind .... and probably a hybrid

By the way -- the store that sold it didn' know the ID either? or was it sold under the cop-out label "assorted african cichlids" ?
in which case there is a higher probability that it is indeed a hybrid because breeders with hybrids will market them this way to retailers)