Most likely non-sentient
|Ministry of Magic Classification||
Hippocampus lay large, semi-transparent eggs through which the young hippocampus, known as a Tadfoal, can be seen.
- Hippocampus is derived from the words "hippos" means "horse" and "kampos" means "sea monster".
- The Hippocamp or Hippocampus, like many creatures in the Harry Potter series, is derived from Greek mythology. A Hippocampus-like creature can be seen in the painting "The Chariot of Poseidon" .
- Hippocampus also refers to a major component of the brains of humans and other mammals. It is what enables the conscious short term memory, and was famously removed from Henry Molaison, when a doctor suspected that removing it would cure his epilepsy. 
Behind the scenes
- A Hippocampus model was constructed for the film adaptation of Harry Potter and the Goblet of Fire, where it was meant to be painted as an ice sculpture and used for decoration in the Yule Ball scene. However, the resulting model ended up being too large for that purpose, and thus the concept was dropped.
- Harry Potter and the Goblet of Fire (film) (Cut from final film)
- Fantastic Beasts and Where to Find Them
Notes and references
Magical Creatures by classification