Photographic record of the Tremoctopus violaceus specimen (135 mm ML) in natural environment highlighting relevant characters for its taxonomic determination A ventral water pore B–D web of dorsal arms coiled on the ventral side and deployed when female was feeling threatened E egg mass F web displaying an iridescent greenish glow and a reddish brown color G–I evidence of autotomy: segments detached from interbrachial membrane showing slender arm, part of the connective tissue, circulatory system and chromatophores pattern characteristic of the species.

 
 
  Part of: 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