Ocypodidae Rafinesque, 1815 Ocypode gaudichaudi Milne Edwards & Lucas, 1843 (Fig. 25 A, B) and Ocypode cursor (Linnaeus, 1758) (Fig. 25 C–F) Ossicles I and II are inclined about 45° in the antero ventral direction. The unpaired propyloric ossicle (VI) is inclined a few degrees in the posterior direction. The urocardiac ossicle (VII) has an oval non-calcified area antero median. The pectinal ossicle (VIII) is ring-shaped with 13 accessory teeth. The dorsal part of the prepectinal ossicle (IX) is elongate and curves towards the post-pterocardiac ossicle (IIb); its ventral part is significantly widened and has postero ventral a hook-shaped structure. The inferior lateral cardiac ossicle (XIII) has the shape of an elongate oval shape. Postero dorsal it has a triangular, posteriorly directed connection-piece to the subdentate ossicle (XIV). Ossicles XIXa and XXIa are not recognisable. Uca (Minuca) rapax (Smith, 1870) (Fig. 26 A, B) and Uca (Gelasimus) tetragonon (Herbst, 1790) (Fig. 26 C– F) Ossicles I and II are inclined about 45° in the antero ventral direction. The pterocardiac ossicle (II) is nearly completely connected with the entire antero lateral margin of the mesocardiac ossicle (I); laterally it extends in the form of two projections to the ossicles V and IX. The unpaired propyloric ossicle (VI) is nearly vertical. The pectinal ossicle (VIII) is ring-shaped with 11 accessory teeth. The median and postero ventral parts of the prepectinal ossicle (IX) are enlarged. The inferior lateral cardiac ossicle (XIII) has a long oval shape and two ventrally crossed, rounded tips; the ossicle has a clear connection-piece to the subdentate ossicle (XIV). The lateral ossicle of the cardio-pyloric valve (XVIII) is greatly increased in size and covers the lateral side of the cardio-pyloric valve. Ossicles “XXI–XXIa” are observed as a mixed ossicle.

Published as part of Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, pp. 1-44 in Zootaxa 2510 on pages 29-30, DOI: 10.5281/zenodo.294144