Figure 2.16: There is a close association between the actinomycetes and the non-actinomycetes within the paunch, the two populations intertwined at the gut wall - indicated by a double arrow in A. The scanning electron micrographs shown here also provide evidence of some unusual structures (indicated by single arrows in A), as well as some interesting non-actinomycete filamentous forms (shown by single arrows in B). GE = gut epithelium. Bars = 1μm.