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Thalasseus
genus of Sternidae within Charadriiformes

trivial name latin name name specimens
Sandwich tern
Thalasseus sandvicensis 		Thalasseus sandvicensis 3 3
Great Crested-Tern
Thalasseus bergii 		Thalasseus bergii 1 1
Lesser Crested-Tern
Thalasseus bengalensis 		Thalasseus bengalensis 1 1
Royal Tern
Thalasseus maximus 		Thalasseus maximus 1 1

species comparison1)

1) According to Hartmann (2000a, 2000b and 2016)

Random specimens

Lesser Crested-Tern
Thalasseus bengalensis
Sandwich tern
Thalasseus sandvicensis
Sandwich tern
Thalasseus sandvicensis
Great Crested-Tern
Thalasseus bergii
Sandwich tern
Thalasseus sandvicensis