Freshwater Fishes from Madagascar. 421 
Cichlide. 
Paratilapia polleni, Bleek. 
Lakes Alaotra and Rasoabé, E. Madagascar; Andranolalio, 
S.W. Madagascar, 
In seventeen specimens I count X-—XITI 9-12 dorsal and 
III 8-11 anal rays, 28 to 30 scales in a longitudinal series 
and 8 or 9 gill-rakers on the lower part of the anterior arch. 
Ptychochromis oligacanthus, Steind. 
Ambilo (brackish lagoons) ; Folohy ; Lake Rasoabé. 
In nine specimens I count XITI-XIV 11-13 dorsal and 
III 7-8 anal rays. 
Paretroplus polyactis, Bleek. 
Ambilo (brackish lagoons) ; Folohy ; Lake Rasoabé. 
In nine specimens I count XVI-XVII 16-19 dorsal and 
VII-VIIL 14-16 anal rays. 
Carangide. 
Caranx melampygus, Cuv. & Val. 
Ambilo. 
Mugilide. 
Mugil robustus, Giinth. 
Folohy. 
Atherinide. 
Atherina alaoirensis, Pellegr. 
Lake Alaotra, Lake Rasoabé, and Ambatoharanana, 
HE. Madagascar. 
Bedotia madagascariensis, Regan. 
Lake Rasoabé. 
