Figure 1.

(A-B) Examples of shape and position of the crustacean paragnaths. (A) SEM-picture of the mouthparts of a hatchling of Orchestia cavimana. The incisor part of the mandibles (Md) covers partially the paragnaths. (B) SEM-picture of the mouthparts of a hatchling of the woodlouse Porcellio scaber. (Lb: Labrum; Md: Mandible; Mx1: Maxilla1; Mx2: Maxilla2; Mxp: Maxilliped)