Bothragonus swanii | |
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A rockhead on top of a rock scallop at the Oregon Coast Aquarium. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Scorpaeniformes |
Family: | Agonidae |
Genus: | Bothragonus |
Species: | B. swanii
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Binomial name | |
Bothragonus swanii (
Steindachner, 1876)
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Synonyms [1] | |
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Bothragonus swanii, the rockhead, deep-pitted poacher or deep-pitted sea-poacher, [2] is a fish in the family Agonidae. [3] It was described by Franz Steindachner in 1876, originally in the genus Hypsagonus. [4] It is found in the eastern Pacific Ocean from Alaska to Carmel Bay, California down to depths of 18 metres. It can also inhabit the intertidal zone. Males can reach a maximum total length of 8.9 centimetres. [3]
The species epithet "swanii" refers to James G. Swan of Port Townsend, Washington. [3] The rockhead spawns nearshore, during the months of January–May in the California Current region. [5] Its diet consists of benthic shrimp and crabs. [6]