Crested Bigscale or Crested Ridgehead. To 19 cm (7.5 in) SL (Kotlyar, 2009). Atlantic, Pacific, and Southern Oceans (Fricke et al. 2020); western Pacific Ocean north to Japan (Fujii in Masuda et al. 1984), and Russian north-western Pacific Ocean (Orlov and Tokranov 2019), to southern Bering Sea, and Gulf of Alaska (Mecklenburg et al. 2002), to Chile (Pequeño 1989). Primarily mesopelagic and bathypelagic; depth: 0 – 4,000 m (13,120 ft) (Orlov and Tokranov 2019). Considered a separate species, Poromitra rugosa (Chapman, 1939), by some authors. However, we follow Robertson et al. (2017) and consider this P. crassiceps. This species was split into many taxa by Kotlyar (2009).
Sumber: Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico