Don't forget Amatitliana siquia which is supposedly new to the trade and they are NOT Honduran Red Point. Rapps has them and so shall I soon. 
Types of Convicts?
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A. kanna, A. siquia and A. coatepeque, A. nigrofasciatus are four recognized "convict" species, with probably a few more out there that aren't yet classified. I also have seen them being classed as Cryptoheros now.
From CRC on distinguishing the other three from A. nigrofasciatus:
Diagnosis: Three distinctive characters: first bar on side of body, Y-shaped, well marked, caudal arm discontinuous; bars from sides of body extending fully to the edge of dorsal and anal fins; medial intensifications on 2nd and 3rd bars, sometimes also on 1st (Schmitter-Soto, 2007). This characters are given for Amatitlania.
To distinguish from A. kanna, A. siquia and A. coatepeque, the following diagnostic traits are given: the only species in the genus with two (vs. one) distal rows of interradial scales on anal fin, and arms in the first epibranchial bone parallel (vs. divergent). In addition, posterior end of dentigerous arm of dentary rounded or squarish (vs. triple-spined or bluntly pointed). Peritoneal coloration uniformly dark (vs. not uniformly dark). Rostrad directed pronounced convexity on the ventral process of the articular absent (vs. present). Also morphometric differences (body less deep) vs. A. kanna and A. siquia, and coloration differences (4th bar not Y-shaped) vs. A. coatepeque.
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From CRC on distinguishing the other three from A. nigrofasciatus:
Diagnosis: Three distinctive characters: first bar on side of body, Y-shaped, well marked, caudal arm discontinuous; bars from sides of body extending fully to the edge of dorsal and anal fins; medial intensifications on 2nd and 3rd bars, sometimes also on 1st (Schmitter-Soto, 2007). This characters are given for Amatitlania.
To distinguish from A. kanna, A. siquia and A. coatepeque, the following diagnostic traits are given: the only species in the genus with two (vs. one) distal rows of interradial scales on anal fin, and arms in the first epibranchial bone parallel (vs. divergent). In addition, posterior end of dentigerous arm of dentary rounded or squarish (vs. triple-spined or bluntly pointed). Peritoneal coloration uniformly dark (vs. not uniformly dark). Rostrad directed pronounced convexity on the ventral process of the articular absent (vs. present). Also morphometric differences (body less deep) vs. A. kanna and A. siquia, and coloration differences (4th bar not Y-shaped) vs. A. coatepeque.
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Don't forget Amatitliana siquia which is supposedly new to the trade and they are NOT Honduran Red Point. Rapps has them and so shall I soon.
I have also read that the Rio Caboyo population of A. siquia may be a new species.
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All of these besides "black" are line bred color variants of A. nigrofasciatus or possibly some hybridization between other "convict" species.
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