Table 1. Some information on the species analyzed in this work.

Species	Coordinates	Locality	2n	KF
G. mamiraua (GMA)	03°01′41.8″S/064°51′16.6″W	Mamirauá-AM	54	46m/sm+8st/a
G. carapo (GCA)	00°42′03.2S/049°10′42.1W	Marajó-PA	42	30m/sm+12st/a
G. carapo (GCA)	01° 31′ 34.2″S/052°33′37.9″W	Almeirim-PA	40	34m/sm+6st/a
G. cf. carapo (GCA)	19°34′34″S/57°02′17″W	Pantanal-MS	54	38m/+12sm+/4st
G. arapaima (GAR)	03°02′49.1″S/064°51′02.2″W	Mamirauá-AM	44	26m/sm+18st/a
G. capanema (GCP)	01°11′45″S/47°10′51″W	Capanema-PA	34	20m/sm+14st/a
G. jonasi (GJO)	03° 02′49.1″S/064° 51′ 02.2″W	Mamirauá-AM	52	52 (12 m-sm+40st-a)
G. sylvius (GSY)	22° 59′25″S/48°25′40″W	Botucatu-SP	40	22m/+12sm/+6st
G. inaequilabiatus (GIN)	22° 59′25″S/48°25′40″W	Botucatu-SP	54	42m/+10sm/+2a

2n = diploid number and KF = karyotypic formula.