생.활.의.양.식/旅行과自然

New Guinea River Shark (뉴기니아 리버 샤크)

ccttjj 2021. 10. 30. 04:57

 

 

 

New Guinea River Shark(Glyphis sp. C)

 

Length : 200cm

 

Description

The New Guinea river shark is a scientifically undescribed shark of the

family Carcharhinidae. Only nine specimens have ever been collected :

an immature female taken about 100km up the Adelaide River,

Northern Territory, Australia, in 1989 ; an adult male taken

some 60km up the South Alligator River, Papua New Guinea,

in 1996 ; and in 1999, five females and two males from the East, West

and South Alligator Rivers, in brackish water with salinity ranging from 6 to 26 ppt.

 

Range

Adelaide River in the Northern Australia, South Alligator River in the Papua New Guinea.

 

Physical Appearance

The rare and little-known New Guinea river shark is large and slender with

a rather flat head. It has a broadly rounded short snout and tiny eyes.

The anal fin has a deeply concave posterior margin.

Coloration is an unpatterned grey.

 

Reproduction

Viviparous, with three to eight pups per litter.

 

Status : IUCN ; Endangered