FIGURE 2. Phrosina semilunata juveniles. A in Morphological variations of Phrosina semilunata Risso, 1822 juveniles (Crustacea Amphipoda: Hyperiidea), new evidence from the Gulf of Mexico

FIGURE 2. Phrosina semilunata juveniles. A, habitus, male lateral view; B, habitus, female lateral view; C, uropod 2 distal margin with large spine; D, uropod 3 distal margin with large spine. Scale bars = 1 mm (A–B), 5 µm (C–D).