View all references for Sea squirts, fish, reptiles, birds and mammals (phylum Chordata)
(2001). British sea fishes (2nd edn). Teddington: Underwater World Publications Ltd.
(2000). FishBase. A global information system on fishes. [On-line] http://www.fishbase.org, 2001-05-03 00:00:00
(2001). Photographic guide to the sea and seashore life of Britain and north-west Europe. Oxford: Oxford University Press.
(1997). The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]
(1999). Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line] http://www.jncc.gov.uk/mermaid,
(2000). Marine Animals of the South West. Plymouth: Sound Diving Publications
(2002). National Biodiversity Network gateway. http://www.searchnbn.net, 2008-10-31 00:00:00
(1969). The fishes of the British Isles and north-west Europe. London: Macmillan.
(1986). Fishes of the North-eastern Atlantic and the Mediterranean. Vol. I, II & III. Paris: United Nations Educational, Scientific and Cultural Organisation (UNESCO).