siphuncle

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siphuncle

  1. the honeydew tube of an aphid.
  2. the strands of living tisue present in all the compartments of the shell of a NAUTILOID.
References in periodicals archive ?
The siphuncular region is flat and open, rather than being a tube as in most chambered cephalopods, so it is not subject to explosion under hydrostatic pressure (Jacobs, 1992).
Siphuncular structure in Ordovician endocerid cephalopods.
Viviparous females of both species are slightly pigmented when mounted, they have numerous setae on the posterior part of the head and also on the dorsum of the abdomen and poor siphuncular reticulation; in the alatae (only 1 specimen is known) the medial vein of the forewings only has 2 branches.