Gecarcinidae MacLeay, 1838

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 32

Gecarcinidae MacLeay, 1838

Cardisoma armatum Herklots, 1851 ( Fig. 28 ) and Dicoplax hirtipes (Dana, 1851)

Ossicles I, II and IIb are inclined about 45° in the antero ventral direction. The exopyloric ossicle (IV) is enlarged. The unpaired propyloric ossicle (VI) is nearly vertical. The pectinal ossicle (VIII) is ring-shaped with 13 accessory teeth. The inferior lateral cardiac ossicle (XIII) has a long oval shape and two ventrally directed crossed tips; on its dorsal part it has a posterior directed connection-piece to the subdentate ossicle (XIV). The posterior area of the prepectinal ossicle (IX) is remarkably extended. The ossicle (XIV) has a flattened postero ventral expansion. The lateral ossicle of the cardio-pyloric valve (XVIII) is extremely increased in size and covers the lateral side of the cardio-pyloric valve. Ossicles XXIa and XXIII are not recognisable.

Figures

FIGURE 28. Foregut ossicles and gastric teeth of Cardisoma armatum Herklots, 1851, A. dorsal view, B. lateral view, C. lateral tooth, D. accessory teeth, E. dorso-median tooth, F. cardio-pyloric valve, scales: A. – C. & E. 1 mm, D. 200 µm, F. 200 µm.