View source for circular muscle layer

{{Concept
|label=circular muscle layer
|definition=1. The outermost muscular layer. 

2. ([[Bryozoa]]: [[Phylactolaemata]]) In the body, the outer of the two thin muscle layers, between the [[peritoneum]] and the [[epithelium]]. 

3. ([[Echiura]]) In all, except for [[genus]] Ikeda. 

4. ([[Sipuncula]]) May be grouped into defined bands or fasicles or formed in sheets.
}}
[[Category:Disambiguation page necessary]]
{{Concept scheme relation
|scheme=Dictionary of Invertebrate Zoology
}}