Dromiidae

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 8-9

Dromiidae de Haan, 1833

A detailed description of three dromiid foregut-ossicles ( Metadromia wilsoni , Dromia personata and Lauridromia intermedia ) is given in Brösing et al. 2002. Remarkable deviations from two further dromiid species ( Stenodromia spinirostris and Hypoconcha spinosissima ) are as follows:

Stenodromia spinirostris (Miers, 1881) ( Fig. 2 A, B)

The paired prepterocardiac ossicle (IIa) lies anterior to the mesocardiac ossicle (I). Both have a form of narrow, transversally elongated strips.

Hypoconcha spinosissima Rathbun, 1933

The prepterocardiac ossicle (IIa) is unpaired.

Figures

FIGURE 2. Foregut ossicles of Stenodromia spinirostris (Miers, 1881), A. dorsal view, B. lateral view; gastric teeth of Dromia personata (Linnaeus, 1758), C. lateral tooth, D. accessory teeth, E. dorso-median tooth, F. cardio-pyloric valve; scales: A. - F. 1 mm, D. 200 µm.