Potamonautidae Bott, 1970

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 26

Potamonautidae Bott, 1970

Potamonautes lirrangensis (Rathbun, 1904) ( Fig. 21 )

Ossicles I and II are inclined about 45° in the antero ventral direction. Ossicles “IV–V” are observed as mixed ossicle. The zygocardiac ossicle (V) has a small semicircular impression antero ventral. The pectinal ossicle (VIII) is horseshoe-shaped with five accessory teeth. The inferior lateral cardiac ossicle (XIII) has a connection pice to the subdentate ossicle (XIV) antero dorsal. The subdentate ossicle (XIV) has postero ventral a remarkable spine, which is posteriorly directed. The ossicle (XXIa) is not recognisable.

Figures

FIGURE 21. Foregut ossicles and gastric teeth of Potamonautes lirrangensis (Rathbun, 1904), A. dorsal view, B. lateral view, C. lateral tooth, D. accessory teeth; scales: A. & B. 1 mm, C. 300 µm, D. 400 µm.