Frilled shark (Chlamydoselachus anguineus)
|Researched by||Eliza Gibson-Hall||Refereed by||This information is not refereed|
|Other common names||-||Synonyms||-|
This eel-like shark is characterized by frilled edges along its body. The maximum total length is 197 cm including a large anal fin and single dorsal fin. The head is large and flattened with a large, terminal, mouth. It is deep brown in colour. This species has six, large, gill slits with the first pair joining under the throat. Its teeth are ‘needle-sharp’ and have three sharp points (tricuspid teeth) used for holding onto slippery prey.
Recorded distribution in Britain and Ireland
Scattered offshore records to the northwest of the British Isles in the eastern Atlantic.
It has a widespread but patchy distribution. In the eastern Atlantic, it is recorded from the north of Britain and Norway to Namibia. Records in the Indian Ocean as well as the western and eastern Pacific, New Zealand, USA (west coast) and northern Chile.
Commonly found on continental shelves, near to large islands. Its habitat can range from 100 – 1500 m but the majority are usually found at 500 – 1000 m. There have been occasional sightings and catches at the surface. The species is demersal (near the bottom) or benthopelagic (near the bottom and midwater). It has also been found in the water column.
Depth range100-1500 m
- It has six, large, gill slits
- The maximum total length is 197 cm
- The teeth are needle sharp and tricuspid
- Its head is large, flatten and snake-like
- Its body is characterized with frilled edges
The majority of elasmobranchs have only five gill slits whilst the hexanchiformes (including this species) have six or seven. The diet of the frilled shark consists of; deepwater squid, a variety of fish and other sharks. This is an ovoviviparous species (live birth) with 6-13 pups per litter. Status has changed from ‘near threatened’ to ‘least concern’ (ICUN, 2016) and it is a by catch species.
Compagno, L.J.V., 1984. FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fisheries Synopsies, 125, 1-249
Shark Trust, 2010. An Illustrated Compendium of Sharks, Skates, Rays and Chimaera. Chapter 1: The British Isles and Northeast Atlantic. Part 2: [Citation 06-07-2018]. Available from https://www.sharktrust.org/fact-files
Smart, J.J., Paul, L.J. & Fowler, S.L. 2016. Chlamydoselachus anguineus. The IUCN Red List of Threatened Species 2016. Avaliable from: http://www.iucnredlist.org/details/41794/0
This review can be cited as:
Last Updated: 23/08/2018