| Solenofilomorpha funilis | 1975 or earlier | intertidal | sand and mud | Numerous specimens. From sand and mud flats. paratypes AMNH 819, 820 from Wrightsville Beach, North Carolina, USA. |
| Myopea crassula | 1975 or earlier | intertidal | sand and muddy sand | from sand and muddy sand flats. holotype AMNH 825, five paratypes AMNH 826-830. Over 500 specimens collected from this and the other North Carolina sites. |
| Fusantrum rhammiphorum | 1975 or earlier | | sand | from sand flat. Holotype AMNH 838, and two paratypes AMNH 839 and 840. Over 80 specimens collected for identification from this and other North Carolina site. |
| Endocincta punctata | 1975 or earlier | | sand | from sand flat. Holotype AMNH 843, and two paratypes AMNH 844 and 845. Over 40 specimens collected for identification. |
| Paracatenula urania | June 1970 | | polychaete tubes | six specimens, found on tubes of an onuphid polychaete, collected by Dr. C. Jenner, University of North Carolina. collected at Harbor Island Banks channel side near bridge Highway 76, fine sand flat. |
| Retronectes euterpe | 1974 or earlier | intertidal | coarse shell | three specimens, two adults. coarse shell above high water, 5 cm sediment depth, intercoastal waterway. |
| Kytorhynchella meixneri | 1970 or earlier | | medium sand rich in organic matter | mid-tide level, at low tide, 0.5 to 2 cm depth. sand flat 300 ft. north of the drawbridge on Highway 76. |
| Kytorhynchella meixneri | 1970 or earlier | | medium sand rich in organic matter | sound side; beach in front of water tower. |
| Kytorhynchella karlingi | 1970 or earlier | | medium sand rich in detritus | sound side in front of water tower. surface layers. Specimen (littoral form) differs slightly in the shape of the proboscis and the measurement of the granules in the penis papilla. |
| Macrostomum hystricinum marinum | Jan 1970 | | | Anne McCrary's mud flat at Wrightsville Beach. |