Definitions
Y-organ
- A gland situated near the external adductor muscles of the mandible producing the moulting hormone. [Ingle, 1983]
- Site of secretion of molting hormone in decapods. [McLaughlin, 1980]
- (Taxon-specific: Order Decapoda) Neurosecretory structure in maxillae or base of antennae; secretes hormones promoting molting. [Stachowitsch, 1992]