Toucans are members of the family Ramphastidae from the Neotropics. The family is most closely related to the American barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and about forty different species. The name of this bird group is derived from the extinct Brazilian language of Tupi with the word tucana for these birds.
There are five general in family Ramphastidae.

Genus Andigena
Grey-breasted Mountain Toucan Andigena hypoglauca
Hooded Mountain Toucan, Andigena cucullata
Plate-billed Mountain Toucan, Andigena laminirostris
Black-billed Mountain Toucan, Andigena nigrirostris

Genus Aulacorhynchus Toucanets
Blue-banded Toucanet (Aulacorhynchus coeruleicinctis)
Chestnut-tipped Toucanet (Aulacorhynchus derbianus)
Whitely's Toucanet (Aulacorhynchus (derbianus) whitelianus)
Crimson-rumped Toucanet (Aulacorhynchus haematopygus)
Yellow-browed Toucanet (Aulacorhynchus huallagae)
Emerald Toucanet (Aulacorhynchus prasinus)
Groove-billed Toucanet (Aulacorhynchus sulcatus)

Genus Pteroglossus see Aracari

Genus Ramphastos
Keel-billed Toucan, Ramphastos sulfuratus
Choco Toucan, Ramphastos brevis
Channel-billed Toucan, Ramphastos vitellinus
Red-breasted Toucan, Ramphastos dicolorus
Chestnut-mandibled Toucan, Ramphastos swainsonii
Black-mandibled Toucan, Ramphastos ambiguus
White-throated Toucan, Ramphastos tucanus
Toco Toucan, Ramphastos toco

Genus Selenidera
Guianan Toucanet, Selenidera culik
Tawny-tufted Toucanet, Selenidera nattereri
Golden-collared Toucanet, Selenidera reinwardtii
Gould's Toucanet, Selenidera gouldii
Spot-billed Toucanet, Selenidera maculirostris
Yellow-eared Toucanet, Selenidera spectabilis