The beach licker split from the beach slider. It has grown another tentacle next to its chemoreceptive tentacle, which it uses to capture its favorite prey, the imperial scuttlehopper. This new appendage is thin enough to fit into the holes of the scuttlehoppers colonies and bring up some of the organisms for the licker to eat. The licker will often rub this tentacle on leftover stickyballs, to make scuttlehoppers easier to catch.
The name "licker" may be a bit deceiving. The tentacle is not truly a tongue, but it acts much like the tongue of an Earth anteater or frog.