Stereo baited remote underwater video systems (BRUVS) are widely used to document diversity, abundance, and biomass of marine wildlife and record unusual behaviours. We observed a cuttlefish appearing to mimic decapod morphology and locomotion during a non-targeted BRUVS study on Australia’s Northwest Shelf. While the pharaoh cuttlefish Sepia pharaonis (Ehrenberg, 1831) is putatively thought to mimic the appearance of a hermit crab in a laboratory setting, our observation is the first wild record of decapod mimicry by a cuttlefish, tentatively identified as Sepia smithi (Hoyle, 1885). In situ observations increase our understanding of how cuttlefish behave in their natural environment while interacting with other species and provide opportunities to further our understanding of the source and breadth of these mimicry.

诱饵式远程水下视频系统（BRUVS）被广泛用于记录海洋野生生物的多样性，丰度和生物量，并记录不寻常的行为。在对澳大利亚西北大陆架的非针对性BRUVS研究期间，我们观察到了一条乌贼似乎模仿了十足动物的形态和运动。人们认为法老墨鱼乌贼棕褐色（Ehrenberg，1831）在实验室环境中模仿了隐士蟹的外观，但我们的观察是墨鱼十足模仿的首次野生记录，初步确定为乌贼墨鱼。（霍伊尔，1885年）。现场观察增加了我们对墨鱼在自然环境中与其他物种相互作用的表现的了解，并为进一步了解这些模仿的来源和广度提供了机会。