Bat Feces Debris
                This is from a tapelift collected on a ceiling tile over an
                  office area. 
              
              
                Transmitted Off Crossed Circular Polarized Light
                
Definition/Function:
                Significance in the Environment:
                Digested insect debris and bat hair indicate the presence of bats in this environment.
                Characteristic Features:
                Associated Particles:
                References: