0-5 m. [details]

3-17 m. [details]

Pacific Ocean: California (La Jolla). [details]

South Pacific Ocean: New Zealand (North Island). [details]

The specific epithet californiensis refers to the type locality of the species, the state of California (USA). [details]

The specific epithet kalkin is an adjective from the Mapuche language of the Chilean indigenous population, meaning ... [details]

The species is named after Carlos Leiva, "colleague and friend of P.A.-C. and A.R., for his help collecting and ... [details]

The species is named after D. Ángel A. Luque, "colleague, friend, and mentor in our malacological endeavours" ... [details]

The species is named after Dr. Sergi Taboada, "for his help collecting and sorting part of the analysed material, ... [details]

Amongst algae and kelp holdfasts, between 0-5 m depth. [details]

Amongst Corallina sp., calcareous and brown algae, kelp and sponges, between 3-17 m. [details]

La Jolla, San Diego, California, USA, Pacific Ocean (32.866944°, -117.255833°). [details]

Las Cruces, Valparaiso region, Chile, Pacific Ocean (-33.847778°, -72.0575°). [details]

Luzon Island, 'Mainif Point', between Balayan Bay and Batangas Bay, Philippines (13.68°, 120.855556°). [details]

Anza Cove, San Diego, California, USA, Pacific Ocean (32.795278°, -117.212778°). [details]

Cavalli Islands, North Island, New Zealand, South Pacific Ocean (-34.984444°, 173.944167°). [details]

Not known to exist. According to Álvarez-Campos et al (2017) "The whereabouts of the type material of this species ... [details]

The type species is Trypanosyllis krohnii. This has always been true as it is a type by monotypy, and thus no other ... [details]