Table 1.

Chromosomal data for the Lebiasinidae family. The symbol ♂ was used to represent the males and ♀ for the females. The question mark (?) was used when the sexes ere not identifiable. The karyotype formula uses “m” as metacentric, “sm” as submetacentric, “st” as subtelocentric and “a” as acrocentric chromosomes.

Species	2n (Sex)	Karyotype	Reference
Copeina
C. guttata	42 (?)	-	[15]
Copella
C. arnoldi	44 (?)	-	[15]
C. nattereri	36 (?)	-	[15]
Copella sp.	26 (?)	-	[15]
Copella sp.	24 (?)	-	[15]
Nannostomus
N. beckfordi (A)	42 ♂	2m + 40a	[16]
N. beckfordi (B)	44 (?)	-	[15]
N. beckfordi (C)	36 (?)	-	[15]
N. eques (A)	34 (?)	34a	[16]
N. eques (B)	36 (?)	-	[15]
N. arrisoni	40 (?)	-	[15]
N. marginatus	42 (?)	-	[15]
N. trifasciatus (A)	46 (?)	-	[15]
N. trifasciatus (B)	38 (?)	-	[15]
N. trifasciatus (C)	30 (?)	-	[15]
N. trifasciatus (D)	24 (?)	-	[15]
N. unifasciatus	22 (?)	-	[15]
Pyrrhulina
Pyrrhulina cf. australis	40♂♀	6st + 34a	[17]
Pyrrhulina sp.	42 (?)	2m + 2sm + 38st/a	[18]
P. australis	40♂♀	4st + 36a	[19]
Pyrrhulina cf. australis	40♂♀	4st + 36a	[19]
P. brevis	42♂♀	2sm + 4st + 36a	[20]
P. semifasciata	41♂42♀	1m + 4st + 36a ♂ 4st + 38a ♀	[20]