Osphradium in molluscs functions as

Osphradium in molluscs functions as Chemoreceptor. In molluscans, a single or paired sensory attachment to the visceral ganglia is called osphradium. The major function of osphradium is to test the incoming water for silt and food particles. The osphradium also acts as an olfactory organ in certain mollusks and is linked with the respiratory organ.