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Fig. 6. SEM images of the dry gula. (A,C,D) Surface of the gula. (B) Cross fracture
of the gula cuticle showing the epicuticle (epi), exocuticle (exo) and
endocuticle (endo). Fibres of the outer part of the exocuticle are oriented
perpendicular to the surface but are parallel in the deeper layers of the
exocuticle and in the endocuticle. Pores (pr), dried organic substances (se)
and cracks (cr) can be seen on the cuticle surface. c, d, rectangles indicate
parts of the sample magnified in C and D, respectively.