Leech of Yoh-Vombis

The Leeches of Yoh-Vombis are a subterranean species of Martian parasitic lifeforms which inhabit the underground ruins of Yoh-Vombis, built by the extinct Yorhis, and are believed to have been responsible for their extinction.
Category:Non-Sapient Species
Category:Species Originating From Lovecraft Circle Works
Category:Extraterrestrial Species