| Species | Name Used |
|---|---|
| Cerebratulus californiensis Coe, 1905 | Cerebratulus californiensis (p. ) |
| Lineus flavescens Coe, 1904 | Lineus flavescens (p. ) |
| Micrura alaskensis Coe, 1901 | Micrura alaskensis (p. ) |
| Siphonenteron bilineatum Meneghini, 1847 | Lineus bilineatus (p. 116 ) |
| Tubulanus pellucidus (Coe, 1895) | Tubulanus pellucidus (p. ) |