Trapeziidae Miers, 1886

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 23-24

Trapeziidae Miers, 1886

Trapezia lutea Castro, 1997 ( Fig. 18 A, B); Trapezia cymodoce (Herbst, 1801) ( Fig. 18 C–F) and Tetralia glaberrima (Herbst, 1790)

The ossicles (I and II) are inclined about 45° in the antero ventral direction. The unpaired propyloric ossicle (VI) is nearly vertical. The pectinal ossicle (VIII) is horseshoe-shaped with four accessory teeth. The inferior lateral cardiac ossicle (XIII) has a connection-piece to the subdentate ossicle (XIV) antero dorsal. Ossicle XIXa is not recognisable.

Figures

FIGURE 18. Foregut ossicles of Trapezia lutea Castro, 1997, A. dorsal view, B. lateral view; gastric teeth of Trapezia cymodoce (Herbst, 1801), C. lateral tooth, D. accessory teeth, E. dorso-median tooth, F. cardio-pyloric valve; scales: A. & B. 0,5 mm, C. – F. 100 µm.