Fig. 2

Mesobiotus emiliae. (a) whole body, live animal in water; (b) ventral oral cavity armature in Hoyer’s medium; (c) placoid morphology, animal in water; (d) SEM image of the body cuticle; (e) claws and legs IV in Hoyer’s medium, asterisk indicates the larger granulation visible in LM. Black flat arrowhead indicates the constriction of the third macroplacoid; white flat arrowhead indicates examples of the fine granulation present over the entire cuticle.