Typhlonarke tarakea 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Chondrichthyes Rajiformes Narkidae

Scientific Name: Typhlonarke tarakea
Species Authority: Phillipps, 1929
Common Name(s):
English Blind Electric Ray, Oval Electric Ray

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Needs updating
Assessor(s): Duffy, C. (SSG Australia & Oceania Regional Workshop, March 2003)
Reviewer(s): Cavanagh, R.D. & Kyne, P.M. (Shark Red List Authority)
Typhlonarke tarakea is a poorly known electric ray, endemic to New Zealand. It is apparently rare, however, its distribution and status is uncertain due to confusion with the similar T. aysoni. T. tarakea is potentially vulnerable to fisheries activity since its known distribution coincides with major trawl fishery grounds, but insufficient information is available to assess the species beyond Data Deficient at this time.

Geographic Range [top]

Range Description:Uncertain due to confusion with T. aysoni. Blind electric rays have been recorded off east coast North Island south of East Cape, South Island, Stewart Island, Chatham Rise (Mernoo Bank and Chatham Islands) and Snares Shelf to 49°S.
Countries occurrence:
New Zealand
FAO Marine Fishing Areas:
Pacific – southwest
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:Largely unknown. Blind electric rays of both species have been trawled from 46 to 800 m, but are most common between 300 to 400 m. The flabby disc and rudimentary tail suggest blind electric rays are very poor swimmers and they probably push themselves along the bottom with their well developed pelvic appendages. Diet includes polychaete worms. Reproduction is probably ovoviviparous. Litter size is up to 11. Size at birth is 9 to 10 cm. Maximum size 35 cm total length.

Threats [top]

Major Threat(s): Bottom trawling.

Conservation Actions [top]

Conservation Actions: There are currently no conservation measures in place for this species.

Citation: Duffy, C. (SSG Australia & Oceania Regional Workshop, March 2003). 2003. Typhlonarke tarakea. The IUCN Red List of Threatened Species 2003: e.T41868A10581444. . Downloaded on 29 April 2017.
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