Rhinophore
![A pair of rhinophores on the head of Chromodoris coi](/Images/godic/202502/07/Chromodoris_coi_rhinophores0303.jpg")
![Right rhinophore of Acanthodoris pilosa](/Images/godic/202502/07/Acanthodoris_pilosa_rhinophore0303.jpg")
![Rhinophores of Aplysia californica](/Images/godic/202502/07/Aplysia_californica_rhinophore0303.jpg")
![A low-power scanning electron microscopy (SEM) micrograph showing the rhinophore tip of Aplysia californicaScale bar is 300 μm.rg - rhinophore groovetip - rhinophore tip.](/Images/godic/202502/07/Aplysia_californica_rhinophore_20304.jpg")
A rhinophore is one of a pair of chemosensory club-shaped, rod-shaped or ear-like structures which are the most prominent part of the external head anatomy in sea slugs, marine gastropod opisthobranch mollusks such as the nudibranchs (Nudibranchia), Sea Hares, (Aplysiomorpha) and sap-sucking sea slugs (Sacoglossa).