Colomesus tocantinensis

Colomesus tocantinensis^[1] is a species of pufferfish in the family Tetraodontidae. It is endemic to Brazil, where it inhabits the Tocantins River basin. It reaches a length of 3.5 cm (1.4 inches) SL.^[2] The species was described in 2013 by Cesar R. L. Amaral, Paulo M. Brito, Dayse A. Silva, and Elizeu F. Carvalho based on morphology and genetic evidence, both of which separate it from its congeners Colomesus asellus and C. psittacus.^[3]

Colomesus tocantinensis
Tocantins, Brazil, scale bar = 1 cm
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Tetraodontiformes
Family:	Tetraodontidae
Genus:	Colomesus
Species:	C. tocantinensis
Binomial name
Colomesus tocantinensis Amaral, Brito, Silva & Carvalho, 2013