| Conjuguterus parvus Pearse, 1938 | summer 1938 | | | one specimen. |
| Oligoclado floridanus Pearse, 1938 | summer 1938 | | | several specimens. |
| Prosthiostomum lobatum Pearse, 1938 | summer 1938 | | | |
| Bdelloura candida (Girard, 1850) | Jun 26, 1946 | | | on the base of legs of Limulus polyphemus, on average about 172 bdellourans per individual. |
| Eustylochus ellipticus (Girard, 1850) | Jun 24, 1946 | | | three specimens found in 25 burrows of Upogebia affinis (Say). |
| Stylochus zebra (Verrill, 1882) | Aug 5, 1946 | 40 | | in a trawl off Fort Macon at a depth of 40 feet, seven specimens of Pagurus poolicaris Say were examined with on specimen of Stylochus found in the shell. |
| Planctoplanella atlantica Hyman, 1940 | prior to 1940 | surface | | Taken in surface tow, 8:30-9:00 p.m., no date, Sheepshead Shoal, off Beaufort. |
| Kytorhynchella meixneri Rieger, 1974 | 1970 or earlier | 20 m | | one specimen was obtained from a sample taken offshore. This specimen 'sublittoral form' differs slightly in measurements and fine structure of the pharynx (more inner circular muscles. |
| Pregermarium beaufortensis Stirewalt, Ferguson, & Kepner, 1942 | summer 1941 | below water level | algae | |
| Pregermarium carolinensis Stirewalt, Ferguson, & Kepner, 1942 | summer 1941 | below water level | algae | |
| Hymania prytherchi Pearse & Littler, 1938 | 1938 or earlier | | | |
| Trigonostomum prytherchi Kepner, Ferguson & Stirewalt, 1941 | 1941 or earlier | | mud | |
| Archiloa wilsoni Stirewalt, Kepner & Ferguson, 1940 | 1940 or earlier | | | |
| Stylochus pulcher Hyman, 1939 | 1940 or earlier | | | dredged in 60 feet, in a snail shell occipied by a hermit crab. One living specimen sent by Dr. Pearse. |