Distribution: Antarctica (Scotia Sea; King George Island; South Shetland Islands); Southeast Atlantic; Magellanic region; South Shetland Islands; Argentine Basin; off La Plata River (Uruguay); Brazil Basin; Guiana Basin; Northwest Atlantic; Southeast Pacific (Peru-Chile Trench); Northwest Pacific Ocean (Kurile-Kamtchatka Trench); (Child 1982, 1994b, 1997; Raiskii & Turpaeva 2006).
Uruguayan records: Child (1982, 1997): RV Atlantis II, cruise 60, sts 240, 242, 243, 245, 256 and 262, referred as 245A and 262A. Depth 567–4402 m.
Remarks: Turpaeva (1990) recorded Pantopipetta brevicauda Stock, 1963 from a locality very close to Uruguayan waters (36°12.9' S– 49°09.7' W, i. e., international waters off Brazil) in a depth of 4630 m (RV Akademik Kurchatov, station 4893, cruise 43). We agree with Child (1982, 1994b) and Bamber & Thurston (1995) in considering P. brevicauda a junior synonym of P. longituberculata.