In Stephen Hillenburg's original pitch bible for SpongeBob, a pelican and an elephant seal were planned to be host characters. Sea cows briefly appear in " Blackened Sponge."Ĭraig Mammalton, an earless seal, appears in " Sun Bleached." A similar-looking seal customer appears in " The Whole Tooth."Īn elephant seal character Stephen Hillenburg originally planned for the show. Holographic grey whales appear at the end of " One Coarse Meal." Different species of octopuses make occasional appearances, such as an octopus mother and her children from " Sailor Mouth," an octopus vendor from " Walking Small", and a dancer from " Slimy Dancing." The only species allowed in Tentacle Acres are octopuses. Other octopuses who appear are Squilliam, Squilvia, and some of the members of the Cephalopod Lodge. The Tentacles family and most of the other cephalopods are octopuses. The character was named "Squidward" instead of "Octoward" because the second name "just didn't work," according to Rodger Bumpass. The octopus is closely related to the squid, which (unlike Squidward) has a cone-shaped head with fins on each side, and has ten limbs. Squidward, one of the main characters, is an octopus. In The SpongeBob Musical, SpongeBob's exact species name is identified: Aplysina fistularis, a yellow sea sponge commonly found in open waters.Ĭlamu is a notable pearl oyster who performs at the Bikini Bottom Zoo, as shown in " The Smoking Peanut." Oysters can also sometimes be used as food, such as in " Squidville," where Patrick is mentioned to have eaten fried oyster skins. Many sea sponges reproduce by " budding," which is when a portion of the sponge breaks off and becomes a complete animal. In real life, sea sponges cannot walk or swim on their own, so they eat by filter-feeding (straining the surrounding water for nutrient particles). SpongeBob SquarePants and his family are sea sponges.