There are 11 species only known in the two zones North West Pacific (23) and North East Pacific (24)
Batheuchaeta heptneri Markhaseva, 1981 (F)(presence in 2 zones) Gaetanus brevirostris (Brodsky, 1950) (F,M)(presence in 2 zones) Lucicutia oblonga Brodsky, 1950 (M)(presence in 2 zones) Oncaea glabra Heron & Frost, 2000 (F,M)(presence in 2 zones) Oncaea grossa Heron & Frost, 2000 (F,M)(presence in 2 zones) Oncaea insolita Heron & Frost, 2000 (F,M)(presence in 2 zones) Oncaea rimula Heron & Frost, 2000 (F,M)(presence in 2 zones) Oncaea rotata Heron & Frost, 2000 (F,M)(presence in 2 zones) Scaphocalanus insignis Brodsky, 1950 (F)(presence in 2 zones) Triconia canadensis (Heron & Frost, 2000) (F,M)(presence in 2 zones) Triconia thoresoni (Heron & Frost, 2000) (F,M)(presence in 2 zones)
