38 LABORATORY BACTERIOLOGY 
Nacreous: translucent, grayish white, with pearly luster. 
Sebaceous : translucent, yellowish or grayish white. 
Butyrous: translucent and yellow. 
Ceraceous; transiucent and wax colored. 
Opaque. 
Cretaceous : opaque and white, chalky; dull, without luster. 
Duli: without luster. 
Glistening : shining. 
Fluorescent. 
Lridescent. 
1 2 3 4 5 
My, 
A 
ZB 
6 7 8 9 
Fic. 6. Character of borders of colonies: 1, entire; 2, undulate; 
3, repand; 4, lobate-lobulate; 5, auriculate; 6, lacerate; 7, fim- 
briate; 8, ciliate; 9, erose. 
