Figure 4 from: 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

Figure 4 Photographic record of A upper and lower beak B radula, seven teeth and two marginal plates per transverse row are appreciated. On the approach (bottom right) rachidian teeth tricuspid with an A2 seriation is observed. For beak dimensions see Table 1. Scale bars:1 mm (B).