Pycnogonum (Retroviger) pusillum Dohrn, 1881
Pycnogonum balaenarum Linnaeus, 1767 accepted as Pycnogonum litorale (Strøm, 1762)
Pycnogonum cessaci Bouvier, 1911
Pycnogonum chelatum Böhm, 1879 accepted as Boehmia chelata (Bohm, 1879)
Pycnogonum crassirostrum Sars, 1888
Pycnogonum kussakini Turpaeva, 2000
Pycnogonum leticiae Mello-Leitao, 1945 accepted as Pycnogonum cessaci Bouvier, 1911
Pycnogonum litorale (Strøm, 1762)
Pycnogonum littorale (Strøm, 1762) accepted as Pycnogonum litorale (Strøm, 1762)
Pycnogonum nodulosum Dohrn, 1881
Pycnogonum plumipes Stock, 1960
Pycnogonum pusillum Dohrn, 1881 represented as Pycnogonum (Retroviger) pusillum Dohrn, 1881
Pycnogonum rhinoceros Dohrn, 1881 accepted as Pycnogonum nodulosum Dohrn, 1881