Bertella idiomorpha Pietsch, 1973 .

Spikehead Dreamer. To about 10.1 cm (4 in) SL (Balanov and Fedorov 1996). Northern Japan (Pietsch 1973), and southern Kuril Islands (Parin et al. 1995), to Bering Sea (Balanov and Fedorov 1996), and western Gulf of Alaska, to Gulf of California (Pietsch 1973). Depth: 410–1,160 m (1,345 –3,805 ft) (Pietsch 2009); reported from 0–3,475 m (11,398 ft) (Orlov and Tokranov 2019), but without documentation.