- (in a nautilus) the connecting tube that passes from the end of the body through all of the septa to the innermost chamber.
- Entomology. an aphid cornicle.
Origin of siphuncle
Examples from the Web for siphuncle
Historical Examples of siphuncle
In Ammonoids the siphuncle is always marginal, and usually external.
It is peculiar to the louse tribe (Pediculid), and it consists of the tubulet (Tubulus), and siphuncle (Siphunculus).An Introduction to Entomology: Vol. III (of 4)
The siphuncle in the Nautilus pierces the centres of the septa, and in fossil Nautiloids it is usually central or sub-central.
Shell straight or curved, fusiform, aperture simple, siphuncle contracted at septa.
Shell coiled in one plane, aperture wide and simple, siphuncle central.