A killer nympho mermaid with an oral fixation prowls the ocean waters, devouring - up to a point - any man unlucky enough to be swimming naked.



(original screenplay) (as Paul Cohen), (original screenplay) | 1 more credit »


Cast overview, first billed only:
Captain Carl Clitoris
Terri Hall ...
Dr. Sy Smegma (as Richard Lair)
Jody Maxwell ...
Miss Mayhem
Crystal Sync ...
Dora Coxswain (as Rachel McCallister)
Paul Styles ...
Sheriff Rooster Coxswain
Ian Morley ...
Mayor Ike White
Mark Carvel ...
Father Tim / Father Kevin (as Marc Carvel)
Norm Gingold
Edward Krane ...
Lance Sterling (as Ed Krane)
Ras Kean ...
Deputy Dick
Michael Sullivan ...
The Secret Weapon
Steve Kraus ...
Brother Sam
Leroy ...
Stable Inspector
Rick ...
Paper Boy


A killer nympho mermaid with an oral fixation prowls the ocean waters, devouring - up to a point - any man unlucky enough to be swimming naked.

Plot Summary | Add Synopsis


Guaranteed to get you back into the water


Adult | Comedy | Fantasy


X | See all certifications »




Release Date:

9 November 1976 (USA)  »

Box Office


$1,000,000 (estimated)

Company Credits

Production Co:

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Technical Specs


Sound Mix:


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Did You Know?


Actor Paul Styles' character "Sheriff Rooster Cockswain" (the correct spelling) is a takeoff on the John Wayne character name "Rooster Cogburn". See more »


The film's on-screen credits list actor Paul Styles' character as being "Sheriff Rooster Coxswain". In fact, the character's name is "Sheriff Rooster Cockswain" (spelled that way) as seen written on the back of the character's jacket. See more »


Referenced in Video Nasties: Moral Panic, Censorship & Videotape (2010) See more »


Thar She Blows
Written by Sam Cohen
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User Reviews

Sophomoric spoof you can't take your eyes off of
5 October 2015 | by (NYC suburbs) – See all my reviews

When penises start washing up on the beach at Great Head, Long Island, Sheriff Coxswain realizes he's up against a murderous mermaid who gives new meaning to "thar she blows" with her fatal fellatio...

This Triple X-rated riff on the previous year's JAWS has very little missionary but plenty of oral with everyone either giving or getting, even Deputy Dick who pretends to be the mermaid at one point. The "she devil" may not have a tail but she wears a little crown, has a phallic underwater lair, and knows quite a few tricks, including lethal muff-diving and popping up in toilet bowls. Add Nazis, blow-up dolls, vagina sock puppets, a claymation (?) vulture that squirts, and human sex with marionettes and you've got a sophomoric spoof you can't take your eyes off of. Which isn't always a good thing, especially when it flirts with bestiality. You don't see sh!t like this every day, that's for sure. Impossible to rate ...and beware the softcore cut.

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