The Greenland shark is closely related to the Pacific sleeper shark .
The Greenland shark -LRB- Somniosus microcephalus -RRB- , also known as the gurry shark , or grey shark , or by the Inuit name eqalussuaq , is a large shark of the family Somniosidae -LRB- `` sleeper sharks `` -RRB- , closely related to the Pacific and southern sleeper sharks .
Greenland shark