Image: Head of a Green Moray, Gymnothorax prasinus
Head of a Green Moray showing the the nostrils and pores.
- Ákos Lumnitzer
- © Ákos Lumnitzer
Morays have an excellent sense of smell, and have the nares (nostrils) developed into tubes. Most have two nostrils on each side of the head. Water passes in the anterior nostril and out through the posterior nostril. Under the skin, between the 2 nostrils, lies the nasal apparatus, which gives the fish its sense of smell.