Rhinochimaeridae

Harriotta raleighana

The long nose chimeras ( Rhinochimaeridae ) (Size: , rhinos = nose, chimaera = monster ) are marine fish from the class of cartilaginous fishes ( Chondrichthyes ).

Features

Long Nose chimeras 65 to 140 cm long and are usually brown in color. They are characterized by a dagger-like head extension. Your body ends in a long, top and bottom provided with Saumflossen tail thread. Your Klasper are rod-shaped.

The egg capsules of long nose chimeras are pear-shaped, typically with dimensions of 15 × 6 cm.

Dissemination

Long Nose chimeras world live in the deep sea in 200-2600 m depth in temperate, subtropical and tropical seas.

Inside systematics

The eight species belonging to three genera and two subfamilies:

• Subfamily Harriottinae; thick tooth plates genus Harriotta Harriotta haeckeli Karrer, 1972
• Harriotta raleighana Goode & Bean, 1895

• Neoharriotta carri Bullis & Carpenter, 1966
• Neoharriotta pinnata ( gnats Beck, 1931)
• Neoharriotta pumila Didier & Stehmann, 1996

• Genus Rhinochimaera Rhinochimaera africana Compagno, Stehmann & Ebert, 1990
• Rhinochimaera atlantica Holt & Byrne, 1909
• Rhinochimaera pacifica ( Mitsukuri, 1895)

Phylogeny

The family is fossil evidence since the Jurassic. In addition to the extant genera three other extinct genera of the family Rhinochimaeridae be attributed Amylodon, Elasmodectes and Elasmodus.

Endangering

All species of this family are in the red list of endangered species by the World Conservation Union IUCN, but three species are judged to be at risk (least concern) and for the evaluation of the remaining species are not sufficient data available (Data Deficient ).