''Catriona columbiana'', the British Columbia aeolid, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

sea slug Sea slug is a common name for some Marine biology, marine invertebrates with varying levels of resemblance to terrestrial Slug, slugs. Most creatures known as sea slugs are gastropods, i.e. they are Sea snail, sea snails (marine gastropod moll ...

, an aeolid

nudibranch Nudibranchs () are a group of soft-bodied marine gastropod molluscs, belonging to the order Nudibranchia, that shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have b ...

, a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine current power * Marine debris * Marine energy * Marine habitats * Mari ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Trinchesiidae Trinchesiidae is a family of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea. Taxonomic history This family was reinstated as a result of a molecular phylogenetics study.Korshunova, T.; Martynov, A.; Picto ...

Distribution

This species was described from Gabriola Pass,

Nanaimo Nanaimo ( ) is a city of about 100,000 on the east coast of Vancouver Island, in British Columbia, Canada. "The Harbour City" was previously known as the "Hub City", which was attributed to its original layout design with streets radiating fr ...

Vancouver Island Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest ...

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

. has been recorded along the Eastern Pacific coastline of

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

from Cutter Rock,

Ketchikan Ketchikan ( ; ) is a city in and the borough seat of the Ketchikan Gateway Borough on Revillagigedo Island of Alaska. It is the state's southeasternmost major settlement. Downtown Ketchikan is a National Historic Landmark District. With a po ...

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

, to

San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

.McDonald, G. (2015)
''Catriona columbiana'' (O'Donoghue, 1922)
Intertidal Invertebrates of the Monterey Bay Area, California.Rudman, W.B., 2000 (June 11
''Cuthona columbiana'' (O'Donoghue, 1922).
n/nowiki> Sea Slug Forum. Australian Museum, Sydney.

Ecology

''Catriona columbiana'' feeds on the athecate hydroids ''

Tubularia ''Tubularia'' is a genus of hydroids resembling furry pink tufts or balls at the end of long strings, spawning the common name as either the pink-mouthed or pink-hearted hydroid. Description The average height of an individual colony is and ...

'' and '' Syncoryne''.

References

{{Taxonbar, from1=Q3799471, from2=Q13505886 Trinchesiidae Gastropods described in 1922