Blackmouth lanternshark
Etmopterus evansi is a species of the genus Etmopterus within the lantern sharks ( Etmopterinae; classified as family Etmopteridae ). Etmopterus evansi reaches a body length of about 25 inches with a maximum length of at least 30 centimeters. The range of the species includes parts in the Southwest Pacific off the coast of northwestern Australia and Indonesia in the Arafura Sea.
Appearance and characteristics
Etmopterus evansi is a small shark with a known body length of about 25 inches with a maximum length of at least 30 centimeters. He has a typical for the lantern sharks elongated body with a long and wide at the same time and on the upper side flattened head. The body color is light brown and a darker underside. He has black markings behind the anal fins, the caudal peduncle and the central and upper part of the caudal fin. He also has the typical for the lantern sharks light organs on the ventral side.
It has no anal fin and two dorsal fins with the regulatory typical spines before the dorsal fin. The first dorsal fin begins well behind the pectoral fins and is smaller and shallower than the second and has a small mandrel while the mandrel of the second dorsal fin strongly developed and as high as the fin is. Like all species of the family owned pets five gill slits and have a spray hole behind the eye.
Dissemination
The range of the species includes parts in the Southwest Pacific off the coast of northwestern Australia and Indonesia in the Arafura Sea. Here it is known from depths of 430-550 meters.
Way of life
Etmopterus evansi lives in the area of sandbanks and reefs of the continental shelf. Like other sharks it feeds predatory, probably of smaller fish and invertebrates. About his life are very little data.
He is like other species of the order viviparous ( ovoviviparous ).
Endangering
Etmopterus evansi is listed in the IUCN Red List as endangered not .. He, however, has no meaning as a food fish and is accordingly no directed fishing.