Genus Pseudactinoposlhia Dorjes, 1968 



Genus Postmecynostomum Dorjes, 1968 



Pseudaclinoposthia granaria Dories, \96&. North Sea. From 



fine sand, 8 m. 

 Pseudactinoposthia saltans Dorjes, 1968. North Sea. In 



growth on side of a boat. 



Genus Tetraposthia An der Lan, 1936 



Tetraposthia colymbetis An der Lan, 1936. Greenland. 

 Poorly known. 



FamUy MECYNOSTOMIDAE Dorjes, 1%8 

 Genus Mecynostomum Van Beneden, 1870 



Mecynoslomum agile Jensen, 1878 = Archaphanostoma agile. 



Mecynostomum auritum (Schultze, 1851). North Sea, 

 Mediterranean, Black Sea, salt spring in Germany. From 

 sand and mud in shallow water. Past records of this species 

 may actually involve the following: 1) M. auritum without a 

 bursa and 2) these species with a bursa: M. auritum forma 

 typica changed to Pseudmecynostomum westbladi Dorjes 

 1968; M. auritum forma flavescens changed to 

 Pseudmecynostomum flavescens (Westblad 1946); and M. 

 auritum forma glandulosum changed to Postmecynostomum 

 glandulosum (Westblad 1946) (see Dorjes 1968a:l 16; Dorjes 

 and Karling 1975:181). 



Mecynostomum bathycolum Westblad, 1948 = Pseudmecyno- 

 stomum bathycolum. 



Mecynostomum haplovarium Do'rjes, 1968. North 

 Sea. From detritus-rich or muddy sand, shallow water. 



Mecynostomum lutheri (Westblad, 1946) = Pelophila lu- 

 theri. 



Mecynostomum macrobursalis (Westblad, 1946) = Pseudmecy- 

 nostomum macrobursalium. 



Mecynostomum macrospiriferum (Westblad, 1946) = 

 A rchaphanostoma macrospiriferum. 



Mecynostomum minimum Westblad, 1946 = Haplogonaria 

 minima. 



Mecynostomum predatum Faubel, 1976. North Sea. In 

 beach sand. 



Mecynostomum tenuissimum Westblad, 1946 = Proaphano- 

 stoma tenuissima. 



Genus Paedomecynostomum Dorjes, 1%8 



Paedomecynostomum bruneum Dorjes, 1968. North Sea. 

 From sand with detritus, or muddy sand, shallow water to 

 10 m. 



Genus Paramecynostomum Dorjes, 1968 



*Paramecynostomum diversicolor (Orsted, 1845). North 

 Atlantic, Mediterranean, Black Sea, Massachusetts, Rhode 

 Island. Algae, mud, and sand in shallow water. 



Genus Philomecynostomum Dorjes, 1968 



Philomecynostomum lapillum Dorjes, 1968. North Sea. 

 Detritus-rich sand, shallow water. 



Postmecynostomum glandulosum (Westblad, 1946). North 



Sea. From sand with mud, 5-20 m. 

 Postmecynostomum pictum Dorjes, 1968. North Sea. On 



mud or algae in Mytilus colonies, to 5 m. 



Genus Pseudmecynostomum Dorjes, 1968 



Pseudmecynostomum bathycolum (Westblad, 1948). North 



Sea. From soft bottom, 70-90 m. 

 Pseudmecynostomum boreale Faubel, 1977. North Sea. 



From detritus-rich, muddy sand. 

 Pseudmecynostomum bruneofilum Faubel, 1974. North Sea. 



In shallow water in sand down to 10 cm. 

 Pseudmecynostomum bruneum Dorjes, 1%8. North Sea. 



Mixed sand, gravel, mud. 

 Pseudmecynostomum flavescens Dorjes, 1968. North Sea. 



From sand and muddy sand, to 30 m. 

 Pseudmecynostomum fragilis Dorjes, 1968. North Sea. 



From fine sand, 5-8 m. 

 Pseudmecynostomum granulum Dorjes, 1968. North Sea. 



Dredged, on algae. 

 Pseudmecynostomum juistensis Dorjes, 1968. North Sea. 



On mud, intertidal. 

 Pseudmecynostomum macrobursalium (Westblad, 1946). 



North Sea. From clay, 25-35 m. 

 Pseudmecynostomum maritimum Dorjes, 1968. North Sea. 



From coarse gravel, 8 m. 

 Pseudmecynostomum papillosum Faubel, 1974. North Sea. 



Shallow sand area. 

 Pseudmecynostomum pelophilum Dorjes, 1968. North Sea. 



Salt meadow ditch on mud. 

 Pseudmecynostomum westbladi Dorjes, 1968. North Sea. 



From mud or sand, to 10 m. 



FamUy SOLENOnLOMORPHIDAE Dorjes, 1968 



Genus Endocincta Crezee, 1975 



* Endocincta punctata Crezee, \915. North Carolina. In sand 

 flats. 



Genus Fusantrum Crezee, 1975 



*Fusantrum rhammiphorum Crezee, 1975. North Carohna. 

 In sand. 



Genus Myopea Crezee, 1975 



*Myopea crassula Crezee, 1975. North Carolina. In sandy 



and muddy flats. 

 * Myopea latafaucium Crezee, 1975. North Carolina. From 



sand flats. 



Genus OUgofilomorpha Dorjes, 1%8 



Oligofilomorpha interstitiophilum Faubel, 1974. North Sea. 



From sand flats. 

 Oligofilomorpha karlingi Dorjes, 1971. North Sea. From 



muddy sand, 8 m. 



63 



