Found in deep water. Ovoviviparous (Ref. 205). Has large oily liver which helps it to become neutrally buoyant (`hepatic float'). Its powerful jaws, big mouth and enormous lower teeth enable it to bite off large portion of its prey in one sweeping motion. A facultative ectoparasite evidenced by its suctorial lips and feeding apparatus. It has extremely short snout and anteriorly positioned eyes which allows for binocular vision. Minimum depth from Ref. 58018.
- 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 Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247) http://www.fishbase.org/references/FBRefSummary.php?id=247&speccode=88
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