title: A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea.
abstract: A new species of the genus Boca Lowry & Stoddart, 1997 is described from a mesophotic coral ecosystem off southwestern Puerto Rico, in the Caribbean Sea. The new species is easily recognized from the others in the genus mainly by the following characters: (1) maxilliped, inner plate with 2 long apical simple setae; palp, articles slender, subequal in length; (2) gnathopod 1, propodus slightly elongate, about 2.5 × longer than wide, and palm extremely acute, quite long and distinctly demarked by a robust seta at the palmar corner; (3) gnathopod 2, carpus slightly elongate, about 3.7 × longer than wide; (4) pereopod 5, basis widely expanded posteriorly, posterior margin rounded and smooth, and posteroventral lobe weakly developed. We also present a key to world species of Boca. This is the fifth species of Boca from world's oceans and the first record of the genus from Puerto Rico.
authors.affiliation: Universidade Federal da Bahia (UFBA), Instituto de Biologia, Laboratório de Invertebrados Marinhos (LABIMAR). Rua Barão de Jeremoabo, 147, Ondina, Salvador, BA, CEP 40170-290, Brasil.; Email: senna.carcinologia@gmail.com.
authors.forename: André R
authors.initials: AR
authors.lastname: Senna
authors.affiliation: Centro Universitário de Volta Redonda (UniFOA), Curso de Ciências Biológicas. Av. Paulo Erlei Alves Abrantes, 1.325, Prédio 1, Três Poços, Volta Redonda, RJ, CEP 27240-560, Brasil.; Email: rayanesorrentino@gmail.com.
authors.forename: Rayane
authors.initials: R
authors.lastname: Sorrentino
authors.affiliation: Indian School of Learning, Department of Biology, ISM Annexe, P.O. - ISM, Dhanbad 826004, Jharkhand, India.; Email: drtchatterjee@gmail.com.
authors.forename: Tapas
authors.initials: T
authors.lastname: Chatterjee
authors.affiliation: University of Puerto Rico, Mayagüez, Department of Marine Sciences. Call Box 9000, Mayagüez, PR 00681, USA.; Email: nschizas@gmail.com.
authors.forename: Nikolaos V
authors.initials: NV
authors.lastname: Schizas
mesh_terms: D033304:Amphipoda / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D000818:Animals; D017691:Caribbean Region; D057894:Coral Reefs; D011647:Puerto Rico; D013045:Species Specificity