FIGURE 9. Leptalpheus marginalis Anker, 2011 in First known occurrence of the alpheid shrimps Leptalpheus forceps Williams, 1965 and L. marginalis Anker, 2011 (Decapoda: Caridea) in the state of Pará, Amazon region, Brazil

FIGURE 9. Leptalpheus marginalis Anker, 2011 from the Ajuruteua Peninsula in the Bragança region of the state of Pará, Amazon region, northern Brazil. (A, C) ♂ specimen (CL=4.3 mm; TL=11.2 mm); (B, D) ♂ specimen (CL=3.5 mm; TL=9.5 mm): (A) frontal region of the carapace and frontal appendages, dorsal view; (B) frontal region of the carapace, dorsal view; (C) frontal region of the carapace and frontal appendages, lateral view; (D) frontal region of the carapace, lateral view. Scale bars=1 mm.