FIGURE 1 in Six new species and three new records of infaunal alpheid shrimps from the genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning, 1986 (Crustacea, Decapoda)

FIGURE 1. Leptalpheus marginalis sp. nov.: all except I—holotype, male from Ciénaga Porto Nao, Caribbean coast of Colombia (USNM 1155316); I—paratype, male from the same locality (USNM 1155317): A, frontal region, dorsal view; B, same, lateral view; C, same detail of anterolateral margin and orbital crests; D, telson, dorsal view; E, ventromesial tooth on first article of antennular peduncle, lateral view; F, lateral antennular flagellum, lateral view; G, scaphocerite, dorsal view; H, antennal flagellum, lateral view; I, third maxilliped, lateral view; J, second pereiopod, lateral view; K, third pereiopod, lateral view; L, appendix masculina and appendix interna, dorsal view; M, uropod, dorsal view (setae omitted).