Defining Characteristics




Дата канвертавання22.04.2016
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Family Mitsukurinidae


Kingdom: Animalia

Phylum: Chordata

Subphylum: Vertebrata

Class: Chondrichthyes

Order: Lamniformes

Family: Mitsukurinidae

Genus: Mitsukurina

Species: Mitsukurina owstoni
Defining Characteristics:


  • Elongated, flattened snout with electroreceptors

  • Mouth ventral

  • Jaws highly protrusible

  • Small eyes

  • Five gill slits

  • Anal fin broadly rounded

  • Upper lobe of caudal fin long (~ ½ length of body

  • Lower lobe of caudal fin not developed

  • Vertebrae 122-125

  • Body length 107-380 cm, max 3.8 m

  • Pale grey, brown, to pink due to blood vessels visible through the skin


Distribution:



Feeding Behavior:


  • Protrusion of jaws accompanied by depression of tongue = rapid buccal cavity expansion allows for swallowing of relatively large prey and occlusion of upper and lower teeth prevents small prey from escaping.

  • Probably hangs motionless in the water column detecting approaching prey with the ampullae of Lorenzini along its snout.

  • Prey items: Crabs, squid, mesopelagic teleosts, octopus, ~ ostracod


Reproduction:



Population Status:


  • IUCN Red List: Least concern



References:
Carrier, J.C., Musick, J.A., Heithaus, M.R., 2004. Biology of Sharks and Their Relatives. CRC Press, pp. 46, 48, 67.

Duffy, C. A. J. , 1997. Further records of the goblin shark, Mitsukurina owstoni


(Lamniformes: Mitsukurinidae), from New Zealand. New Zealand Journal of Zoology, Vol. 24: 167-171

Froese, R. and D. Pauly. Editors. 2007. FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2007), accessed 10/1/07.

Hamlett, W. C., 1999. Sharks, Skates, and Rays the Biology of Elasmobranch Fishes. The John Hopkins University Press. pp. 19, 20.

IUCN 2007. IUCN Red List of Threatened Species. . Downloaded on 01 October 2007.

Nelson, J.S., 2006. Fishes of the World 4th edition. John Wiley & Sons, Inc., pp. 57, 58.

Pope, P.E., 1973. Dictionary of Sharks. Great Outdoors Publishing Co. pp. 42.



Rorem, S. 2002. "Sea Creatures 101: Shark Series: The Goblin Shark: Ugly and Rare" (On-line ). Accessed 03-16-03 at http://www.suite101.com/article.cfm/aquatic_animals/87679.


Amber McCammon 4/22/2016


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