World Library  
Flag as Inappropriate
Email this Article

Aesthete (chiton)

Article Id: WHEBN0021383379
Reproduction Date:

Title: Aesthete (chiton)  
Author: World Heritage Encyclopedia
Language: English
Subject: Mollusc eye
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Aesthete (chiton)

Aesthetes are visual organs in chitons. They are tiny 'eyes', too small to be seen unaided, embedded in the organism's shell.[1] They may act in unison to function as a large, dispersed, compound eye.[2] They are light sensing organs that are derived from the mantle of the organism. Some chitons also have larger lens-bearing eyes.[2]

The aesthetes are derived from mantle tissue which extend through holes in the shell (microscopic). Recent studies by ultrasound analysis of the aesthetes have shown that they do not function as an eye, but as an excretory organ secreting periostracum (a proteinaceous material covering and protecting the shell from abrasion). this layer is constantly worn away by waves and debris as a function of their rugged habitat, and must be continuously replaced to protect the shell.

References


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.