Freshwater Fishes from Madar/ascar. 421 



Cichlidae. 



Paratilapia polleni, Bleek. 



Lakes Alaotra and Rasoab^, E. Madagascar; Andranolalio, 

 S.W. Madagascar. 



Ill seventeen specimens I count X-XII 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 oligacanthuSj Steind. 



Ambilo (brackish la£i,oons) ; Fololiy ; Lake Easoabd. 

 In nine specimens I count XIII-XIV 11-13 dorsal and 

 III 7-8 anal rays. 



Paretroplas folyaclis^ Bleek. 



Ambilo (brackish lagoons) ; Folohy ; Lake Rasoabd. 

 In nine specimens I count XVI— XVII 16-19 dorsal and 

 VII-VIII U-16 anal rays. 



Carangidae. 

 Caranx melampygus, Cuv. & Val. 



Ambilo. 



Mugilidae. 

 Muuil robuslns, Giintli. 



Folohy. 



Atherinidae. 



Atherina alauirensis, Pellegr. 



Lake Alaotra, Lake liasoabe, and Ambatoharanana, 

 E. Madagascar, 



Bedvtia viadayascariensis^ Regan. 

 Lake Rasoabd. 



