Rasboroides nigromarginatus Athwelthota DZ3360 Rasboroides nigromarginatus Athwelthota DZ3359 A 100 Gilimale, Kalu River basin DZ3761 Gilimale, Kalu River basin DZ3759 Gilimale, Kalu River basin DZ3760 Gin River basin WHT62 Horawala, Bentara River basin DZ3101 Horawala, Bentara River basin DZ3100 Rasboroides rohani Suriyakanda DZ3335 100 Rasboroides rohani Suriyakanda DZ3334 Rasboroides rohani Suriyakanda DZ3333 Nawalapitiya, Mahawel River basin [introduced] DZ3242 Nawalapitiya, Mahawel River basin [introduced] DZ3243 Pitigala, Bentara River basin DZ3298 Rasboroides pallidus Niriella, Kalu River basin DZ3387 Pitigala, Bentara River basin DZ3297 Rasboroides vaterifloris AP011432 100 Rasboroides vaterifloris EU241471 Bentara River basin WHT44 Kottawa, Gin River basin WHT16 Rasboroides vaterifloris HM224374 Horadandia atukorali Horana DZ3285 Horadandia atukorali Horana DZ3286 Horadandia atukorali Dombagaskanda DZ3114

100 Horadandia atukorali Neluwa WHT1J Horadandia atukorali Gin River basin WHT61 Horadandia atukorali Galgamuwa DZ3513 Malayochela maassi EU241444 100 100 Neochela dadiburjori EU241417 Devario regina EF151100

0.05

B Rasboroides nigromarginatus Athwelthota DZ3359

Rasboroides nigromarginatus Athwelthota DZ3360 97 Rasboroides vaterifloris Gilimale, Kalu River basin DZ3761

Gilimale, Kalu River basin DZ3760

Gilimale, Kalu River basin DZ3759

Horawala, Bentara River basin DZ3100

Pitigala, Bentara River basin DZ3298 99 Nawalapitiya, Mahawel River basin [introduced] DZ3242

Rasboroides vaterifloris AP011432

Pitigala, Bentara River basin DZ3297

Nawalapitiya, Mahawel River basin [introduced] DZ3243 Rasboroides pallidus

Niriella, Kalu River basin DZ3387

99 100 Horawala, Bentara River basin DZ3101

Rasboroides rohani Suriyakanda DZ3335

Rasboroides rohani Suriyakanda DZ3333

Horadandia atukorali Horana DZ3286

Horadandia atukorali Horana DZ3285

Horadandia atukorali Dombagaskanda DZ3114

100 Horadandia atukorali Neluwa WHT1J

Horadandia atukorali Galgamuwa DZ3513

Malayochela maassi EU241444 100 Devario regina EF151100 100

Neochela dadiburjori FJ753506

0.06

Supplement Figure 1. Maximum Likelihood phylograms based on A, cytb and B, coi datasets for species of Rasboroides in Sri Lanka. Numbers above nodes represent the ML bootstrap values. The scale bar represents number of changes per site.