Ectosymbiosis is symbiosis in which the symbiont lives on the body surface of the host, including internal surfaces such as the lining of the digestive tube and the ducts of glands. ...
Symbiosis in which one member (microsymbiote) develops on the outside of the other member. 
Symbiosis between two organisms which are physically separated from each other. ... Compare: endosymbiosis. ... (09 Oct 1997) ... 
Symbiosis in which one member (micro-symbiote) develops on the outside of the other member.
ectosymbiosis Symbiosis between two organisms which are physically separated from each other. Symbiosis refers to an organism interaction where one organism lives in intimate association with another one.