466 



rATA(.oMAN i:.\im:i)Hion> 



2. At/tciiiiopsis bonanoisis (Cu\ 

 encicnnes), 



I-;vcnn;uiii & Kendall, 1906, 95. 

 Habitat: Lakes of Argentina. 



I'amilv I'OLYCKNTRID^. 



POLYCENTRUS Muller & Troschel. 

 Type: Polycentrus sclioiiiburgkii Miil- 



ler & Troschel. 

 Range: Guiana and Trinidad. 



1. Polycentrus schombjirgkii Muller & Tro- 



schel Giinther, III, 370. 



Habitat: Essequibo; Orinoco; Trini- 

 dad. 



2. Polycentrus tricolor Gill, 



Giinther, Ill.^/O. 



Habitat : Trinitlad. 



MONOCIKKHUS Heckel. 

 T\'pe : Monocirrh us p ol y a cant h u . 



'Heckel. 

 Range that of the single species. 

 Al. Monocirrhus polyacantlius Heckel, 



Giinther, III, 371 

 Habitat: Rio Cupai and ponds near thi 

 Rio Negro. 



1-amily CENTROPO.MID^, 



Centropomus Lacepede. 



Oxylabrax Bleeker; Macrocephalus 

 Brown. 

 Type: Sciccna undecitnalis Bloch. 

 Range : Marine. Some, possibly all, of 

 the species entering or living in 

 fresh water. 

 A I. Centropomus medius Giinther, 



J. & !•:.. 1110. 



C. grandoculatus E. & J.; C. pcdiniac- 



ula part J. & E. 

 Habitat: Atlantic and Pacific coasts, 

 entering rivers. 

 A2. Centropomus parallelus Poey, 



J. &E., 1122. 

 C. gabbi and lieringi Eowler; C. niexi- 



canus Bocourt. 

 Habitat: Cuba to Bahia; Pacific ct)ast, 

 entering rixers. 

 3. Centropomus undecimalis (Bhich), 



J. &E., 1118. 

 C. undecimradiatus, boubina and aureo- 

 viridis Lacepede; C. argenteus Re- 

 gan ; C. appendiculatus Poey. 



Habitat: Atlantic coast, entering rivers. 

 A4. Centropomus pectinatus Poey, 



J. & E., 1 122. 

 C. pediviacula Poey. 

 Habitat : Cuba to Pernambuco, enter- 

 ing ri\'ers. 

 5. Centropomus nigrescens Giinther, 



Regan, 50. 

 Habitat: Rio Presidio to Panama. 

 0. Centropomus robalito Jordan & Gilbert, 

 J. &E., 1123. 

 C. iiriiidtus Giinther, non Gill. 

 Habitat: Pacific coast from Mazatlan to 

 Panama, entering rivers. 



7. Centropomus armatus Gill, 

 Regan, 1903, 627. 



C. atridorsalis Regan ; C. brevis Giin- 

 ther. 



Habitat: Rio Vaqueria near La Tola, 

 northwestern Ecuador. 



8. Centropomus ensiferus Poey, 

 Regan, i9o6t-, 391. 



C. (iljinis Stcind. ; C. scaber Bocourt. 

 Habitat: Guiana. 



