both sajica and spilurum are closely related to the convict. spilurum and sajica actually look rather similar at times. check this link to compare these and other closely related species. just a note, in the middle of the page just above where it says "Cryptoheros Allgayer, 2001" is a picture of a spilurum in normal coloration. the picture of spilurum on the menu to the left side of the page is a pair in breeding coloration.