A widely distributed deep water species with few, all erroneous, records in sub-Antarctic waters (see Komai & Komatsu 2016). According to Gorny et al. (1992) all sub-Antarctic records of N. longirostris are based on N. lanceopes. However, while there is indeed no evidence on the occurrence of N. longirostris in the Southern Ocean, N. lanceopes is considered a true Antarctic endemic (Komai & Komatsu 2016) and recent sub-Antarctic records of Nematocarcinus are based on other species (see Burukovsky & Pakhomov 2009; Komai & Komatsu 2016).