Jiménez-Badillo ML, Meiners-Mandujano C, Galindo-Cortes G, Morillo-Velarde PS, González-Gómez R, Barriga-Sosa IA, Pliego-Cárdenas R (2021) The first record of Tremoctopus violaceus sensu stricto Delle Chiaje,1830 in southwestern Gulf of Mexico gives a hint of the taxonomic status of Tremoctopus gracilis. ZooKeys 1012: 55-69. https://doi.org/10.3897/zookeys.1012.55718