The integument often exhibits a strong ornamental pattern running from a fingerprint-like series of parallel ridges (plicationsplications:
the fingerprint-like pattern of raised ridges that often ornaments the soft cuticle of mites.
), to a radiating series of ridges intersecting to form a stellatestellate:
star-like. 
pattern to randomly raised pustules or spines to organized series tuburcles that may form ring-like annulations.
Author: David E. Walter
Content last updated Sept. 2006, unless indicated otherwise
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