This is Jim Pettie. He was nicknamed "Seaweed" because of his clumpy, stringy hair.
Pettie was the Boston Bruins back up netminder in 1978-79, playing in 21 career NHL games. He was a tough bugger, too, picking up 13 PIMs in the NHL. In one minor league season he actually earned an amazing 145 PIMs.
He is most famous for being prolific writer George Plimpton's roommate when Plimpton participated in the Bruins training camp (even playing 5 minutes against the Flyers) while writing the book Open Net. As a result, he was prominently featured in the classic book.
Read the full Jim "Seaweed" Pettie biography.