Arthropoda

Type: Phylum

Parent: Animalia

Aspidoras

Type: Genus

Parent: Corydoradinae

Aspredinidae

Type: Family

Parent: Siluriformes

Aspredininae

Type: Subfamily

Parent: Aspredinidae

Astronotus

Type: Genus

Parent: Cichlinae

Astyanax

Type: Genus

Parent: Characinae

Atherinella

Type: Genus

Parent: Menidiinae

Atheriniformes

Type: Order

Parent: Actinopteri

Atherinopsidae

Type: Family

Parent: Atheriniformes

Auchenipteridae

Type: Family

Parent: Siluriformes

Auchenipterinae

Type: Subfamily

Parent: Auchenipteridae

Australoheros

Type: Genus

Parent: Cichlinae

Bagropsis

Type: Genus

Parent: Pimelodidae

Baiostoma

Type: Genus

Parent: Achiridae

Bathygobius

Type: Genus

Parent: Gobiinae

Batrochoglaninae

Type: Subfamily

Parent: Pseudopimelodidae

Beloniformes

Type: Order

Parent: Actinopteri

Bergiaria

Type: Genus

Parent: Pimelodidae

Brachyhypopomus

Type: Genus

Parent: Hypopomidae

Brycon

Type: Genus

Parent: Bryconinae

Bryconamericus

Type: Genus

Parent: Stevardiinae

Bryconidae

Type: Family

Parent: Characiformes

Bryconinae
Bryconinae

Type: Subfamily

Parent: Bryconidae

Bryconops

Type: Genus

Parent: Iguanodectidae

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