Cloyster (Japanese: パルシェン “Parshen”) is a dual-type WATER and ICE Pokémon. It evolves from the WATER-type Shellder when exposed to a Water Stone.
Basically, Cloyster is a big, mean oyster. Near the top of where it splits open is a throbbing weapon. Shellder (Japanese: シェルダー “Shellder” ) is a tongue-wagging scallop. The tongue of Shellder is actually a “foot” in a real brachiopod.
I nicknamed a female Cloyster “Delores” after a famous “Seinfeld” episode. Jerry was dating a girl, and he could not remember her name. All he knew was that her name rhymes with the name of a female body part.
(Side Note: I think only a Jerry Seinfeld fan would name a Cloyster “Mulva”.)
Also, Cloyster has that mysterious “pointy thing” thing above its face … so, again … heh heh … similar to the female body part, referred to by Seinfeld.
I have not named many Shellder. I just use “Sheldon” as in the character from “The Big Bang Theory”.
I named one “ShellyLong” but I think I was not even trying. “MaryShelley” is OK for Frankenstein fans. “Me Shell” perhaps for Beatles fans. “Shell Shocked” may work for male or female. “BlahBlahBlah” is my name based on annoying tongue wagging.
“Squirt” or “Squirt Me”, or some variation of that may be good, because real scallops propel themselves by squirting. Maybe you like watching that type of thing.
The above cosplayer was “Tipping the Velvet” … so now for a little Pokémon cosplay with some “mussel” …
“Pearl” or “Black Pearl” may also be appropriate names. Don’t try “Ironclit” (a play on the nautical term “Ironclad”), as the XY name censor will not take it.
You might use the name “Ama” who were Japanese pearl divers. However, the name refers to the divers not the oysters.
Gather your “Dive Balls” and access your “Good Rod”! Next time you are in a coastal region, you may want to “go diving” for some Cloyster!