basis of record
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
additional source
Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. <em>Clarendon Press: Oxford, UK.</em> 627 pp. (look up in IMIS) [details] Available for editors 
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Classification When originally discovered in the 1800s, many pterobranchs were initially classified as bryozoans or other organisms. [details]
Habitat Many pterobranch species have been found in Antarctic regions and colder waters, but they have also been found in warmer waters at lower latitudes. [details]
