1) Fish genus 2) Genus lamna 
Lamna is a genus of mackerel sharks in the family Lamnidae, containing two extant species: the porbeagle (L. nasus) of the North Atlantic and Southern Hemisphere, and the salmon shark (L. ditropis) of the North Pacific. ==Endothermy== The two species of this genus can keep their blood temperature higher above that of the water surrounding them tha...
[n] - a genus of Lamnidae
genus Lamna noun a genus of Lamnidae