The SUPER SUNFISH is a version of the standard SUNFISH offered with an unstayed cat rig. A kit was also available to use on an existing SUNFISH. The idea had developed a few years earlier using a slightly more complex rig (FORMULA S). AMF adopted this, their own version, which was availble for 10 years beginning in 1974.
The smaller MINIFISH was available with a similar option.

Similar to the Alcort SUNFISH.

Later known as the SNARK SEA SKIMMER. Originally sold by Sears & Roebuck and other retailers.
Another model called the SEA SWINGER seems to be similar.

Similar the SUPER SNARK with a larger rig and different deck arrangement.
Updated version available as SUNFLOWER 3.3 (1990?)

The successor to the original SAILFISH (first introduced in 1948). The SAILFISH was originally built of plywood and many were sold as kits. The fiberglass SUPER SAILFISH MKII was introduced in 1959 and the original was discontinued shortly afterward. ALCORT produced several hundred SUPER SAILFISH a year but it was soon eclipsed in popularity by the hugely successful SUNFISH, which was first produced in fiberglass at about the same time.

Early SNARKs were one of the most popular sailing boats ever. This is partly due to the fact that they could be purchased with ‘product coupons’. For example, a large number of Kool cigarette coupons could be redeemed for a SNARK with the Kool logo on the sail. It was also possible to purchase a SNARK with the KOOL logo (without smoking a single cigarette) for $99.
The Kool ad campaign reportedly received 18000 SEA SNARK orders in 1971 alone!
Most later SNARK’s are made of styrofoam with an outer layer of ABS for improved durability.
(Although the boats that were part of ad campaigns were usually built of styrofoam without the ABS shell.)

Modified with centerboard in 1990 (MACGREGOR 26S).
Number built includes both S & D models, making the 26 one of the most widely produced sailboats of this size and type in the world.