Sixgill sawshark
Encyclopedia
The sixgill sawshark, Pliotrema warreni, the only member of the genus
Pliotrema, is a sawshark
of the family
Pristiophoridae, found in the subtropical waters of the western Indian Ocean
between latitudes 23° S
and 37° S
, at depths of between 60 and 430 m. Its length is up to about 1.7 m.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
Pliotrema, is a sawshark
Sawshark
The sawsharks or saw sharks are an order of sharks bearing long blade-like snouts edged with teeth, which they use to slash and disable their prey...
of the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Pristiophoridae, found in the subtropical waters of the western Indian Ocean
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...
between latitudes 23° S
23rd parallel south
The 23rd parallel south is a circle of latitude that is 23 degrees south of the Earth's equatorial plane, about 50km north of the Tropic of Capricorn...
and 37° S
37th parallel south
The 37th parallel south is a circle of latitude that is 37 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America....
, at depths of between 60 and 430 m. Its length is up to about 1.7 m.