ATTRACTION OF SNAIL ACHATINA-FULICA TO EXTRACTS OF CONSPECIFIC PEDAL GLANDS

When individually tested in an olfactometer, snails discriminated homogenates of conspecific pedal gland from homogenates of conspecific salivary gland. They oriented preferentially toward the pedal gland stimulus, when it was presented either as an aqueous solution or as a residue of an ether extraction. These results, together with others, indicate that the pedal gland of Achatina fulica secretes a lipid substance that serves as an aggregation pheromone. © 1978 Academic Press, Inc.