Panopeidae Ortmann, 1893

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 25

Panopeidae Ortmann, 1893

Rhithropanopeus harrisii Gould, 1841 ( Fig. 20 )

Ossicles I and II are inclined about 60° in the antero ventral direction. The zygocardiac ossicle (V) has a large semicircular impression antero ventral. The unpaired propyloric ossicle (VI) is inclined a few degrees in the posterior direction; its dorsal margin is weakly U-shaped and has a sharp-edged central portion. The pectinal ossicle (VIII) is horseshoe-shaped with seven accessory teeth. The inferior lateral cardiac ossicle (XIII) has a connection piece to the sub-dentate ossicle (XIV) antero dorsal.

Figures

FIGURE 20. Foregut ossicles and gastric teeth of Rhithropanopeus harrisii (Gould, 1841), A. dorsal view, B. lateral view, C. lateral tooth, D. accessory teeth, E. dorso-median tooth, F. cardio-pyloric valve; scales: A. & B. 1 mm, C. 200 µm, D. – F. 100 µm.