8821 Ptychochromis oligacanthus (Bleeker, 1868) Cichlidae Cichlids Ptychochrominae Cichliformes Teleostei Four-spotted Madagascar cichlid Africa: endemic to the coasts of Madagascar, except the central western coast and Nosy-Be Island. AMNH 18841 Ptychochromis oligacanthus AMNH 225992 Ptychochromis oligacanthus AMNH 58044 Ptychochromis oligacanthus ZMH 2772 Tilapia oligacanthus ZMH 2811 Tilapia oligacanthus ZMH 16786 1895 Tilapia oligacanthus ZMH 16787 1899 Tilapia oligacanthus AMNH 58491 1988 Ptychochromis oligacanthus AMNH 88018 1988 Ptychochromis oligacanthus AMNH 88032 1988 Ptychochromis oligacanthus AMNH 88043 1988 Ptychochromis oligacanthus AMNH 88053 1988 Ptychochromis oligacanthus AMNH 88076 1988 Ptychochromis oligacanthus AMNH 88090 1988 Ptychochromis oligacanthus AMNH 88092 1988 Ptychochromis oligacanthus AMNH 88094 1988 Ptychochromis oligacanthus AMNH 88102 1988 Ptychochromis oligacanthus AMNH 88117 1988 Ptychochromis oligacanthus AMNH 88140 1988 Ptychochromis oligacanthus AMNH 88153 1988 Ptychochromis oligacanthus AMNH 88186 1988 Ptychochromis oligacanthus AMNH 88190 1988 Ptychochromis oligacanthus AMNH 88201 1988 Ptychochromis oligacanthus AMNH 88202 1988 Ptychochromis oligacanthus AMNH 88203 1988 Ptychochromis oligacanthus AMNH 88204 1988 Ptychochromis oligacanthus AMNH 88205 1988 Ptychochromis oligacanthus AMNH 88206 1988 Ptychochromis oligacanthus AMNH 96999 1990 Ptychochromis oligacanthus AMNH 97008 1990 Ptychochromis oligacanthus AMNH 97012 1990 Ptychochromis oligacanthus AMNH 97028 1990 Ptychochromis oligacanthus AMNH 97029 1990 Ptychochromis oligacanthus AMNH 97057 1990 Ptychochromis oligacanthus AMNH 97117 1990 Ptychochromis oligacanthus AMNH 228067 1998 Ptychochromis oligacanthus AMNH 228072 1998 Ptychochromis oligacanthus AMNH 228074 1998 Ptychochromis oligacanthus AMNH 231347 1999 Ptychochromis oligacanthus AMNH 231352 1999 Ptychochromis oligacanthus