Fig. 13 in Four new sponge-inhabiting barnacles of the genus Acasta (Thoracica: Archaeobalanidae: Acastinae) from the Indo-Pacific

Fig. 13. Acasta crucibasis sp. nov., mouth parts (SEM, paratype, from Taiwan). A, Crest of labrum with mandibular palp; B, Surface of distal part of mandibular palp; C, Mandible; D, Biserrate setae on lateral surface of mandible; E, Setae on upper margin of mandible; F, Maxillule; G, Lower part of maxillule; H, Maxillae, inner surface; I, Small setae on basal part of maxilla; J, Stub setae on proximal lobe of maxilla. Abbreviations: lb = labrum, mdp = mandibular palp. Scale bars in µm.