DNeuroFIG 1: Depiction of L2 and dauer noses.
A. Illustration of external structures associated with anterior sensilla in the L2 and dauer nose.
B & D. Scanning electron micrographs of L2 nose with lips containing IL2 sensory endings.
C & E. Scanning electron micrograph of dauer nose showing closure of the lips and retraction of the papillae.
B-E. (Adapted from Albert and Riddle, 1983.) (A) indicates openings of amphidial channels in the L2 and dauer noses in B, C, E. (Arrowheads) indicate everted papillae in L2 nose in D.
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