Deep-sea Oplophoridae (Crustacea Caridea) from the southwestern Brazil Author Cardoso, Irene Author Contents, Paulo Young Table Of text Zootaxa 2005 2005-08-08 1031 1 1 76 https://biotaxa.org/Zootaxa/article/view/zootaxa.1031.1.1 journal article 10.11646/zootaxa.1031.1.1 1175­5334 5050357 BDBAFE95-EF09-4574-9308-B8F39657CD1E Family Oplophoridae Dana, 1852 Diagnosis: Rostrum immovable. Antennular flagella simple, without accessory filament. Mandible with palp; molar and incisor processes not conspicuously separated. Mandibles dissimilar. Maxilliped 3 elongate, not unusually expanded, five segmented, bearing well developed exopod. All pereopods with well developed exopod. Pereopod 1 to 3, at least, bearing strap like epipod with end piece extending perpendicularly into branchial chamber. Pereopod 1 and 2 with well developed chela and undivided carpus. Pereopod 3 to 5 not unusually long, carpus shorter than propodus. Pleopods with appendix interna. Probably all species capable of some form of bioluminescence (modified from Chace 1986 ).