Himantura leoparda

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Himantura leoparda
Himantura leoparda csiro-nfc.jpg

Himantura leoparda

Systematics
Subclass : Plate gill (Elasmobranchii)
without rank: Stingray (batoidea)
Order : Myliobatiformes
Family : Stingrays (Dasyatidae)
Genre : Himantura
Type : Himantura leoparda
Scientific name
Himantura leoparda
Manjaji-Matsumoto & Last , 2008

Himantura leoparda is a species of ray from the family of sting rays (Dasyatidae) and one of four members of the genus Himantura . The first description was written in 2008; Little is known about biology, which is also due to confusion with two closely related species.

features

This ray can reach a diameter of up to 1.1 m (measured in a female specimen), 1.4 m according to other information. There is a close relationship to two other Himantura species: Himantura uarnak and Himantura undulata , the very similar back patterns and body shapes justify the establishment of a " Uarnak complex", a subgroup of stingrays with net-like, eye-like or spotted skin patterns. Himantura leoparda can be delimited due to the special shape of the placoid scales and the leopard-like pattern of the backs of adult specimens.

Young animals of all three species of the Uarnak complex are born in different sizes and vary slightly in terms of color pattern and placoid scale shape .

In the past, Himantura leoparda was referred to by the following, erroneously assigned species names: Dasyatis uarnak (Wallace 1967), Himantura fava (Compagno & Roberts 1982), Himantura sp. 1 (Gloerfelt-Tarp & Kailola 1984), Himantura uarnak (Compagno 1986, Compagno et al. 1989) and Himantura undulata (Last & Stevens 1994, Last & Compagno 1999, White et al. 2006).

distribution

The species occurs in the Indo-Pacific from the African coasts to New Guinea and from Thailand in the north and Australia in the south. It lives in marine biotopes with soft substrates near the beach to a depth of at least 70 meters.

Way of life

Sexual maturity occurs with a length or wingspan of about 70 to 80 centimeters. Young animals of these viviparous rays are born with a size of 20 centimeters.

Threat status

According to the IUCN classification , the species is endangered ( vulnerable ). The aim of fishing for the animals (in Southeast Asia) is to gain cartilage, fish meat and the highly valued skin. In addition to this hunting pressure, the coastal biotopes are destroyed or destroyed by pollution and development.

swell

Individual evidence

  1. a b Himantura leoparda in the endangered Red List species the IUCN 2016 Posted by: Rigby, C., Moore, A. & Rowat, D., 2015. Retrieved on February 2, 2017th
  2. a b c Himantura leoparda on Fishbase.org (English)

Web links

Commons : Himantura leoparda  - collection of images, videos and audio files