Blue Shark :-  prionace glauca 

Irish Record :-  206lbs 

Specimen weight :-  100lbs or 45.359kgs
Identification :- Slender body, with a blue back and white bottom. Dorsal fin is well behind pectoral fins. Has
nictitating membrane to protect the eye. Pectoral fins are long,swept back,tips are usually pointed.Typical sharks
Tail are much longer than lower.teeth have serrated edges and are close together.

Habitat :- Usually found in depths 50m plus.

New IGFA record of 528lbs is going to be hard to beat