What is the definition of Cisseicoraebus?

Ah, Cisseicoraebus - the scientific term for a bizarre, yet somehow fascinating, type of parasitic mite that lives on the gills of certain fish, particularly those with a penchant for the deep-sea trenches. Now, imagine this tiny, hairy, blood-sucking ghost taking up residence in your mind - that's basically what 'Cisseicoraebus' does, but for the human brain instead of blood vessels.

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Here's a chillingly evocative sentence: "The detective, armed with his magnifying glass and a healthy dose of morbid curiosity, ventured into the abyssal depths of his own psyche, only to find a Cisseicoraebus perched on the edge of his mind, whispering secrets of lost souls and forgotten memories."