Cirrhigaleus australis
The Southern Mandarin mustache dogfish ( Cirrhigaleus australis) is one of three species of the genus Cirrhigaleus within the spiny dogfish ( Squalidae ). It was built in 2007 by the Mandarin mustache dogfish (C. barbifer ) accrued on the basis of molecular and anatomical features. The distribution is in the reef areas off the east coast Australia and around New Zealand.
Appearance and characteristics
The Southern Mandarin mustache dogfish is a medium sized shark with a body length of about one meter. He has a stocky body with a broad, flat head. Striking the two long barbels are starting at the nostrils and up to the mouth.
He has a gray-brown back color and a lighter belly, the skin is compared to other shark species very coarse. The trailing edges of all fins are white without further drawing. Confusion can occur only with the Rauhaut dogfish (C. asper ), but having significantly shorter barbels and occurs mainly along the coasts of Africa and the Gulf of Mexico. Compared to the Mandarin mustache dogfish these species differs mainly by external hardly recognizable anatomical and molecular biological characteristics, a distinction can therefore be made only on the basis of the observation area or laboratory tests.
It has no anal fin and two dorsal fins with the regulatory typical spines before the dorsal fin. The first dorsal fin starts behind the end of the pectoral fins and slightly larger than the second dorsal fin. The pectoral fins are large and broadly triangular. Like all species of the family owned pets five gill slits and have a spray hole behind the eye.
Dissemination
The range of this type includes the reef areas off the east coast of Australia and around New Zealand.
Way of life
The Southern Mandarin mustache dogfish live in coastal areas over the continental shelf and occurs in depths of 140 to 640 meters. He lives mainly near the ground or directly on the seabed. Information about its diet does not exist, it is assumed that the long barbels contain chemoreceptors capable of detecting prey. For humans it is not dangerous. He is like other species of the order viviparous.
System
The genus Cirrhigaleus currently consists of two or three kinds: the Mandarin mustache dogfish (C. barbifer ) and the Rauhaut dogfish (C. asper ) as a recognized species and the Southern Mandarin mustache dogfish described in 2007 (C. australis), the occurrence of the the far broader than Mandarin mustache dogfish populations off the coasts of Australia and New Zealand, and therefore extends the former reduces to the North Pacific deposits.
Endangering
The Mandarin mustache dogfish is classified in the IUCN Red List as a kind of early warning ( " near threatened " ), as it is in its distribution area rarely seen or caught as by-catch in fisheries. Of which deferred Information on Southern Mandarinschnau dogfish are not available.