The ten additional ossicles of the foregut of Sylviocarcinus pictus and Valdivia serrata, found in the present study and not previously recognized by Alves et al. (2010): (9) dorsolateral cardiac plate (VIIb); (10) dorsomedial cardiac plate (VIIa); (11) suprapectineal lateral ossicle (VIIIa); (12) lateral mesopyloric ossicle (XIXa); (13) pleuro-pyloric valve’s ossicle (XXXIa); (14) lateral-inferior post-ampullary plate (XXVIIa); (15) lateral pleuro-pyloric plate (XXXIIa); (16) inferior cardiac valve (XIIa); (17) process of the ampullary roof-upper portion (XXVIa), ampullary roof-mediun portion ossicle (XXVa) Scale bars: 9-15, 17 = 2 mm, 16 = 1 mm.