Rockhead (fish)
| Rockhead | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Scorpaeniformes |
| Family: | Agonidae |
| Genus: | Bothragonus |
| Species: | B. swanii |
| Binomial name | |
| Bothragonus swanii (Steindachner, 1876) | |
| Synonyms[1] | |
| |
The Rockhead (Bothragonus swanii, also known as the Deep-pitted poacher or the Deep-pitted sea-poacher[2]) is a fish in the family Agonidae (poachers).[3] It was described by Franz Steindachner in 1876, originally in the genus Hypsagonus.[4] It is a marine, temperate water-dwelling fish which is known from the eastern Pacific Ocean, including Alaska, Carmel Bay, and California, USA. It dwells at a depth range of 0–18 metres, and inhabits intertidal regions. 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]
References
- ↑ Synonyms of Bothragonus swanii at www.fishbase.org.
- ↑ Common names for Bothragonus swanii at www.fishbase.org.
- 1 2 3 Bothragonus swanii at www.fishbase.org.
- ↑ Steindachner, F. 1876 [ref. 4225] Ichthyologische Beiträge (V). [Subtitles i-v.]. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.): 49-240, Pls. 1-15.
- ↑ Spawning for Bothyragonus swanii at www.fishbase.org.
- ↑ Food items reported for Bothragonus swanii at www.fishbase.org.