Araeolaimoides demani Schuurmans Stekhoven, 1950 accepted as Araeolaimus demani (Schuurmans Stekhoven, 1950) Wieser, 1956 (taxonomy source)
Araeolaimoides leptopharynx Bresslau & Schuurmans Stekhoven, 1935 accepted as Araeolaimus leptopharynx (Bresslau & Stekhoven in Stekhoven, 1935) Wieser, 1956 (taxonomy source)
Araeolaimoides ovalis Wieser, 1956 (original description)
Araeolaimus cylindrolaimus Chitwood, 1936 accepted as Southerniella cylindrolaimus (Chitwood, 1936) Wieser, 1956 (taxonomy source)
Araeolaimus demani (Schuurmans Stekhoven, 1950) Wieser, 1956 (new combination reference)
Araeolaimus gisleni Wieser, 1956 (original description)
Araeolaimus laqueifer Wieser, 1956 (original description)
Araeolaimus ovalis Wieser, 1956 accepted as Araeolaimoides ovalis Wieser, 1956 (original description)
Araeolaimus oxystomaeoides Allgén, 1939 (taxonomy source)
Araeolaimus retroductus Wieser, 1956 (original description)
Araeolaimus tenuicaudatus Allgen, 1935 (taxonomy source)
Araeolaimus tristis Allgen, 1931 accepted as Araeolaimus elegans de Man, 1888 (taxonomy source)
Bathylaimus parassimilis Wieser, 1956 (original description)
Bathylaimus parazostericola (Allgén, 1935) Wieser, 1953 accepted as Bathylaimus longisetosus (Allgén, 1929) De Coninck & Schuurmans Stekhoven, 1933 (source of synonymy)
Cobbia scutata Wieser, 1956 (original description)
Cobbia simplex Allgén, 1929 (status source)
Daptonema adiectus (Schulz, 1932) accepted as Daptonema adiecta (Schulz, 1932) Wieser, 1956 (taxonomy source)
Daptonema alternus (Wieser, 1956) accepted as Daptonema alternum (Wieser, 1956) Lorenzen, 1977 (original description)
Daptonema dentatus (Wieser, 1956) accepted as Daptonema dentatum (Wieser, 1956) Lorenzen, 1977 (original description)
Daptonema exutus (Wieser, 1956) accepted as Daptonema exutum (Wieser, 1956) Lorenzen, 1977 (original description)
Daptonema filispiculum (Allgén, 1932) Wieser, 1956 (redescription)
Daptonema frigidum (Cobb, 1914) Wieser, 1956 (redescription)
Daptonema gyrophorus (Wieser, 1956) accepted as Daptonema gyrophorum (Wieser, 1956) Lorenzen, 1977 (original description)
Daptonema kornoeensis (Allgén, 1929) accepted as Daptonema kornoeense (Allgén, 1929) Lorenzen, 1977 (additional source)
Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (redescription)
Daptonema polaris (Cobb, 1914) Wieser, 1956 (redescription)
Daptonema trichospiculum (Allgén, 1933) Wieser, 1956 (redescription)
Didelta scutata Wieser, 1956 accepted as Didelta scutatum Wieser, 1956 (original description)
Didelta scutatum Wieser, 1956 (original description)
Diplopeltis onustus Wieser, 1956 accepted as Diplopeltula onusta (Wieser, 1956) accepted as Neodiplopeltula onusta (Wieser, 1956) Holovachov & Boström, 2018 (original description)
Diplopeltula onusta (Wieser, 1956) accepted as Neodiplopeltula onusta (Wieser, 1956) Holovachov & Boström, 2018 (original description)
Eleutherolaimus filicaudatus (Allgén, 1929) (additional source)
Halinema acanthurum (Cobb, 1920) Wieser, 1956 (new combination reference)
Linhomoeus gracilisetosus (Allgén, 1946) Wieser, 1956 (new combination reference)
Linhomoeus paralongicaudatus (Allgén, 1934) Wieser, 1956 (new combination reference)
Linhomoeus pilosus (Schuurmans Stekhoven, 1950) Wieser, 1956 (taxonomy source)
Mesotheristus Wieser, 1956 accepted as Daptonema Cobb, 1920 (original description)
Metalinhomoeus gracilis (Kreis, 1929) Wieser, 1956 (new combination reference)
Metalinhomoeus pareffilatus Wieser, 1956 (original description)
Metalinhomoeus retrosetosus Wieser, 1956 (original description)
Monhystera magallanica Wieser, 1956 accepted as Thalassomonhystera magallanica (Wieser, 1956) Jacobs, 1987 (original description)
Monhystera paramonovi Allgén, 1953 (status source)
Monhystera tasmaniensis Allgén, 1927 accepted as Thalassomonhystera tasmaniensis (Allgén, 1927) Jacobs, 1987 (redescription)
Monhystera tenuis Schuurmans Stekhoven, 1950 accepted as Thalassomonhystera tenuis (Schuurmans Stekhoven, 1950) (status source)
Odontophora furcata Wieser, 1956 (original description)
Odontophora parangustilaima Wieser, 1956 (original description)
Odontophora peritricha Wieser, 1956 (original description)
Odontophora polaris (Cobb, 1914) Wieser, 1956 (original description)
Onchium conicaudatum (Allgén, 1935) Wieser, 1956 accepted as Onchium metocellatum (Wieser, 1956) Gerlach & Riemann, 1973 (original description)
Parachromagasteriella annelifera Wieser, 1956 accepted as Axonolaimus anellifer (Wieser, 1956) Lorenzen, 1994 (original description)
Parachromagasteriella brevicauda Schuurmans Stekhoven, 1942 accepted as Southerniella brevicauda (Schuurmans Stekhoven, 1942) (original description)
Parachromagasteriella conicauda Schuurmans Stekhoven, 1950 accepted as Southerniella conicauda (Schuurmans Stekhoven, 1950) Wieser, 1956 (taxonomy source)
Paralinhomoeus buculentus (Wieser, 1956) Gerlach, 1963 (original description)
Paralinhomoeus intermedius (Allgén, 1929) Wieser, 1956 accepted as Linhomoeus intermedius Allgen, 1929 (additional source)
Paralinhomoeus macquariensis (Allgén, 1929) (additional source)
Paralinhomoeus meridionalis (Cobb, 1930) Wieser, 1956 accepted as Linhomoeus meridionalis (Cobb, 1930) Wieser, 1956 (new combination reference)
Paralinhomoeus ordinarius Wieser, 1956 (original description)
Paralinhomoeus pachyamphis Wieser, 1956 accepted as Anticyclus pachyamphis (Wieser, 1956) Gerlach, 1963 (original description)
Paralinhomoeus strigosus Wieser, 1956 (original description)
Paramonhystera Steiner, 1916 accepted as Paramonohystera Steiner, 1916 (additional source)
Paramonhystera biforma Wieser, 1956 accepted as Paramonohystera biforma Wieser, 1956 (original description)
Paramonhystera elliptica Filipjev, 1918 accepted as Paramonohystera elliptica (Filipjev, 1918) (original description)
Paramonhystera megacephala Wieser, 1956 accepted as Paramonohystera megacephala Steiner, 1916 (taxonomy source)
Paramonhystera paranormandica (Micoletzky, 1922) accepted as Paramonohystera paranormandica (Micoletzky, 1922) accepted as Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (taxonomy source)
Paramonhystera proteus Wieser, 1956 accepted as Paramonohystera proteus Wieser, 1956 (original description)
Paramonohystera biforma Wieser, 1956 (original description)
Paramonohystera elliptica (Filipjev, 1918) (status source)
Paramonohystera paranormandica (Micoletzky, 1922) accepted as Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (taxonomy source)
Paramonohystera pellucida (Cobb, 1920) (taxonomy source)
Paramonohystera proteus Wieser, 1956 (original description)
Parasphaerolaimus paradoxus Ditlevsen, 1918 (basis of record)
Paratripyloides cruminus Wieser, 1956 (original description)
Paratripyloides viviparus (Cobb, 1930) (new combination reference)
Promonhystera Wieser, 1956 (original description)
Promonhystera faber Wieser, 1956 (original description)
Promonhystera tricuspidata Wieser, 1956 (original description)
Pseudosteineria Wieser, 1956 (original description)
Pseudosteineria anteferens Wieser, 1956 (original description)
Pseudosteineria anticipans Wieser, 1956 (original description)
Pseudosteineria horrida (Steiner, 1916) Wieser, 1956 (taxonomy source)
Siphonolaimus anticomoides (Allgén, 1933) Wieser, 1956 (source of synonymy)
Siphonolaimus auratus Wieser, 1956 (original description)
Siphonolaimus gladiator Wieser, 1956 (original description)
Siphonolaimus pachyderma Wieser, 1956 (original description)
Siphonolaimus pellucidus Allgén, 1932 (redescription)
Southernia roervikensis Allgen, 1946 accepted as Cyartonema roervikensis (Allgén, 1946) Juario, 1972 (taxonomy source)
Southerniella conicauda (Schuurmans Stekhoven, 1950) Wieser, 1956 (taxonomy source)
Southerniella zostericola (Allgén, 1929) Wieser, 1956 (new combination reference)
Sphaerolaimus asetosus Allgén, 1952 (additional source)
Sphaerolaimus duplex Allgén, 1952 (redescription)
Sphaerolaimus megamphis Wieser, 1956 (original description)
Sphaerolaimus paradoxus Ditlevsen, 1918 accepted as Parasphaerolaimus paradoxus Ditlevsen, 1918 (basis of record)
Spiramphinema Wieser, 1956 (original description)
Spiramphinema convolutum Wieser, 1956 (original description)
Spiramphinema longiseta Wieser, 1956 (original description)
Spiramphinema microcephalon (Schuurmans Stekhoven, 1942) Wieser, 1956 (original description)
Steineria cobbi Wieser, 1956 (original description)
Steineria pectinata Wieser, 1956 (original description)
Synodontium impar (Ssaweljev, 1912) Wieser, 1956 (new combination reference)
Terschellingia claviger Wieser, 1956 (original description)

South Atlantic for Siphonolaimus auratus Wieser, 1956 

 Habitat

 for Siphonolaimus auratus Wieser, 1956

Sublittoral soft bottom.  [details]

 Taxonomic remark

 for Monhystera paramonovi Allgén, 1953

There are some species which are either insufficiently described, or of doubtful status. In most of the latter only ... [details]

 Taxonomic remark

 for Trichotheristus Wieser, 1956

Wieser, W. (1956) described Trichotheristus as a subgenus of Theristus. [details]