FIGURE 7. Alpheus naos n in Three transisthmian snapping shrimps (Crustacea: Decapoda: Alpheidae: Alpheus) associated with innkeeper worms (Echiura: Thalassematidae) in Panama

FIGURE 7. Alpheus naos n. sp., male holotype from Punta Culebra, Isla Naos, Panama (USNM 1100668): a, frontal region, dorsal view; b, same, lateral view; c, tooth on mesioventral carina of first antennular segment, lateral view; d, second pleopod, lateral view; e, same, appendix masculina and appendix interna; f, left uropod, dorsal view; g, telson, dorsal view; h, same, detail of posterior margin. Scale bars: 1 mm.