Alobophora sandrae Cajiao-Mora and Bullard n. gen., n. sp. (Digenea: Caballerotrematidae) (paratype 340-PA-FCA-UdeA) from the intestine of an arapaima, Arapaima gigas (Schinz) sensu lato (Osteoglossiformes: Arapaimidae) from the Amazon River near Leticia, Amazonas, Colombia. Scale value beside bars. Dorsal view. A, Anterior end of body. B, Third quarter of body. Abbreviations: anterior testis (at); body surface spines (bs); cirrus (ci); dextral cecum (dc); egg (eg); esophageal bifurcation (eb); Laurer’s canal (Lc); metaterm (me); nerve commissure (nc); oötype (oö); oral sucker (os); ovary (ov); pharynx (p); posterior vas efferent (pve); pre-pharyngeal esophagus (pe); seminal vesicle (sv); sinistral cecum (sc); transverse vitelline duct (tvd); uterine seminal receptacle (usr).