| Amphiscolops zeii Riedl, 1956 | 1956 or earlier | 18 m | detritus mixed mud bottom |  | 
| Childia submaculatum (Westblad, 1942) | 1956 or earlier | 6-50 m |  |  | 
| Nemertoderma sp. Westblad, 1937 | 1956 or earlier |  | mud | universally in mud, sometimes with shell, sand and detritus.  Långholm and Grötö. | 
| Haploposthia rubra (An der Lan, 1936) | 1956 or earlier | 30 m | mud with detritus |  | 
| Haploposthia pellucidus (Westblad, 1942) | 1956 or earlier | 18 m |  |  | 
| Paraproporus rubescens Westblad, 1945 | 1956 or earlier | 16-20 m |  |  | 
| Childia groenlandica (Levinsen, 1879) | 1953 or earlier | 20 m | mud and sand with detritus | middle. | 
| Childia groenlandica (Levinsen, 1879) | 1953 or earlier | 18 m | mud and sand with detritus | Stationsnähe. | 
| Diopisthoporus longitubus Westblad, 1940 | 1953 or earlier | 15-30 m |  |  | 
| Anaperus rubellus Westblad, 1945 | 1956 or earlier |  |  |  | 
| Mecynostomum minimum (Westblad, 1946) | 1956 or earlier | up to 25 m |  |  | 
| Mecynostomum sizilianum Riedl, 1954 | 1956 or earlier | 19 m |  |  | 
| Childia trianguliferum (Westblad, 1942) | 1956 or earlier | 10-40 m |  | and Långholm. | 
| Convoluta viridipunctata Westblad, 1946 | 1956 or earlier | 19-31 m |  |  | 
| Otocelis rubropunctata (Schmidt, 1852) | 1956 or earlier |  |  |  | 
| Vejdovskya suecica Luther, 1948 | 1956 or earlier | 20-40 m | mud, sand, detritus |  | 
| Trisaccopharynx armatus Riedl, 1956 | 1956 or earlier | 20-40 m | sand, detritus loam |  | 
| Rogneda westbladi Karling, 1953 | 1956 or earlier | 4-40 m | mud loam |  | 
| Placorhynchus octaculeatus Karling, 1931 | 1956 or earlier | 18 m | mud |  | 
| Monotoplana diorchis Meixner, 1938 | 1956 or earlier | 18- 150 m | mud, clay (Schlammböden) |  | 
| Childia groenlandica (Levinsen, 1879) | 1956 or earlier |  |  |  | 
| Myozonaria bistylifera Rieger, 1968 | Apr 1965 | 3-4 m | detritus rich coarse sand | common in the Mediterranean.  west coast near Rovinj, near quay wall, large blocks with algae, and coarse sand. | 
| Myozonaria bistylifera Rieger, 1968 | Aug 1967 | 3-4 m | detritus rich coarse sand | common in the Mediterranean.  west coast near Rovinj, near quay wall, large blocks with algae, and coarse sand. |