As a young un' in the early to mid 70's, I used to see this movie a lot on WNEW 5's Creature Features showcase at 8 PM every Saturday night. Some of you may remember this show, and Lou Steele aka "The Creep" doing little segments in-between the movie. Steele came back briefly to host CF in 1979 in a midnight triple feature that sadly, wasn't enough to save the show when it tanked in 1980.
As owner of this quote in my earlier days here atBadmovies, I'll add a bit more to it.
I too enjoyed this movie, and as a young kid, the human-like eyes on the crab used to scare me because I knew crabs didn't look like that. But now I realize that the reason was because the crab was devouring humans and their intellect, and began showing such features.
Funny, the things you look back on and how they affected you at the time.
B-movies are either hit-or-miss, but one things for sure, you never forget some of em'!