Dardanus substriatus (A. Milne Edwards, 1861)

Garassino, Alessandro, Pasini, Giovanni, Angeli, Antonio De & Hyžný, MatÚš, 2014, The decapod fauna (Axiidea, Anomura, Brachyura) from the Late Pleistocene of Trumbacà, Reggio Calabria (Calabria, southern Italy), Natural History Sciences 1 (2), pp. 119-130 : 121

Dardanus substriatus (A. Milne Edwards, 1861)

Fig. 1C

Material and measurements: 3 left propodi (MSNM i27886 – hpa: 11 mm; ld: 7 mm; li: 3 mm; lpa: 11 mm; MSNM i27888 – hpa: 7 mm; ld: 5 mm; li: 2 mm; lpa: 7 mm; MSNM i27889 – ld: 5 mm; li: 2 mm).

Description: Palm as long as high, with upper and lower margins converging anteriorly; palm covered with sinuous transverse crests, dentate anteriorly; short subtriangular index, very wide at the base and covered with dentate crests; occlusal margin weakly dentate; subtriangular dactylus longer than index.

Discussion. The studied propodi differ from those of Dardanus arrosor in having a shorter palm with upper and lower margins converging anteriorly and more numerous and raised crests, interlaced with each other like “scale fish”. Based upon these characters the studied propodi are assigned to D. substriatus , reported from the Pliocene of Piedmont ( Sismonda, 1846; A. Milne Edwards in Sismonda, 1861), Tuscany ( Ristori, 1886; De Angeli et al., 2009), and from the Early Pliocene (now Early Pleistocene, see Baldanza et al., 2014) of Umbria (Pasini & Garassino, 2010).