Ceraplectana H.L. Clark, 1908 (additional source)
Ceraplectana trachyderma H.L. Clark, 1908 (additional source)
Elpidia glacialis kermadecensis Hansen, 1956 accepted as Elpidia kermadecensis Hansen, 1956 (basis of record)
Elpidia glacialis solomonensis Hansen, 1956 accepted as Elpidia solomonensis Hansen, 1956 (original description)
Elpidia glacialis sundensis Hansen, 1956 accepted as Elpidia sundensis Hansen, 1956 (original description)
Elpidia glacialis theeli Hansen, 1956 accepted as Elpidia theeli Hansen, 1956 (original description)
Elpidia kermadecensis Hansen, 1956 (original description)
Elpidia solomonensis Hansen, 1956 (basis of record)
Elpidia solomonensis Hansen, 1956 (original description)
Elpidia sundensis Hansen, 1956 (original description)
Elpidia theeli Hansen, 1956 (original description)
Euphronides verrucosa Ludwig, 1893 accepted as Psychropotes verrucosa (Ludwig, 1893) (additional source)
Hadalothuria Hansen, 1956 (original description)
Hadalothuria wolffi Hansen, 1956 (original description)
Myriotrochus bruuni Hansen, 1956 accepted as Prototrochus bruuni (Hansen, 1956) (original description)
Paroriza grevei Hansen, 1956 (original description)
Peniagone vedeli Hansen, 1956 (original description)
Periamma naresi (Thiel, 1882) accepted as Amperima naresi (Théel, 1882) (additional source)
Scotoplanes galatheae Hansen, 1956 accepted as Ellipinion galatheae (Hansen, 1956) (original description)

Bougainville Trench for Elpidia solomonensis Hansen, 1956 
Kermadec Trench for Peniagone vedeli Hansen, 1956