The insect upper lip (labrum) is a nonsegmental appendage-like structure.

Autor: Posnien, Nico1, Bashasab, Fakrudin2, Bucher, Gregor1 gbucher1@uni-goettingen.de
Zdroj: Evolution & Development. Sep/Oct2009, Vol. 11 Issue 5, p480-488. 9p. 2 Color Photographs, 1 Diagram.
Databáze: Academic Search Ultimate