''Ulvaria'' may refer to:
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''Ulvaria'' (fish), an animal genus in the family
Stichaeidae
Stichaeidae, the pricklebacks or shannies, are a Family (biology), family of marine ray-finned fishes in the suborder Zoarcoidei of the Order (biology), order Scorpaeniformes. Most species are found in the North Pacific Ocean with a few in the N ...
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''Ulvaria'' (alga), a plant genus in the family Ulvaceae
{{Genus disambiguation