Fig. 2From: Grandidierella japonica (Amphipoda: Aoridae): a non-indigenous species in a Po delta lagoon of the northern Adriatic (Mediterranean Sea) Grandidierella japonica Stephensen, 1938, adult male: (a) antenna 1 with ventral spines; (b) article 5 of gnathopod 1, arrows indicate the three distal posterior teeth; (c) article 5 of gnathopod 1, arrows indicate the two smaller teeth (one of which is double), and the transverse grooves; (d) the double tooth of article 5 and the other small one with a different position are indicated by arrows. Scale bars: A, 0.5mm; B-D, 0.1mmBack to article page