Note 73 — 1. Family BALANIDÆ, (or Sessile Cirripedes). (continued 3)

Rathke has described (‘Acta Nova,’ 1839, p. 147), in some siphonostomatous crustaceans, a pair of curious organs, which serve to secrete a substance that holds the eggs attached together in a mass to the parent’s body: these organs Rathke has designated by a similar name to that which I have used, namely, the cementing organs or receptacles; they are distinct from the oviducts, but enter them near their external orifices. As in Cirripedes, the cement-glands and ducts are certainly continuous with an ovarian tube; and as they occupy a quite different position in the animal’s body, these organs of Rathke, though in some degree analogous in function, must be homologically distinct.