(Order Isopoda):
Spinose lobe on the mandible, between the molar and incisor processes [Wetzer et al. 1997].
(
)
)Nomenclature of isopod cephalon (A). Examples of isopod mouth appendages: Idoteidae (B, C, F, H); Cirolanidae (D, E, G, I). [Wetzer et al. 1997]
See : mandibular spine row
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.