| Class | Order | Family | Genus | Species | Authority | Common Name | Source (full citation given below this table) | 
| ? | Homalorhagida | Pycnophyidae | Pycnophyes | frequens | Blake | ? | Procter (1933, p. 131.) | 
| ? | Homalorhagida | Pycnophyidae | Kinorhynchus | mainensis | (Blake) | ? | Procter (1933, p. 131. as Trachydemus mainensis) | 
| ? | Cyclorhagida | Echinoderidae | Echinoderes | remanei | (Blake) | ? | Procter (1933, p. 131. as Echinoderella remanei) |