| Stylochus floridanus Pearse, 1938 | Jun 12, 1935 | | | U.S.N.M. no. 20187 |
| Eustylochus meridionalis Pearse, 1938 | Dec 27, 1935 | | | U.S.N.M. no. 20188. Collected by George W. Wharton. |
| Hoploplana thaisana Pearse, 1938 | Oct 14, 1935 | | | lives in the snail Thais floridana Conrad. U.S.N.M. no. 20189. Also found in samples 'in which oyster shells were standing and once from a dish of barnacles.' |
| Conjuguterus parvus Pearse, 1938 | Mar 16, 1936 | | | Always found among old shells. |
| Oculoplana whartoni Pearse, 1938 | Aug 16, 1935 | | | U.S.N.M. no. 20195. collected by George W. Wharton. |
| Acerotisa pellucida Pearse, 1938 | Jun 25, 1935 | | | two specimens. |
| Prosthiostomum lobatum Pearse, 1938 | Aug 16, 1935 | | | common. U.S.N.M. no. 20194. Usually found 'at the surface of pails of shells that had been brought in from oyster bars and allowed to stand.' |
| Enantia pellucida (Pearse, 1938) | 1935 | | | Hyman review of Pearse whole mounts results in the new combination. |
| Coronadena mutabilis (Verrill, 1873) | 1935 | | | listed by Hyman 1954 as described by Pearse |
| Zygantroplana angusta (Verrill, 1893) | 1935 | | | listed by Hyman 1954 as described by Pearse |
| Pseudoceros maculosus Pearse, 1938 | 1935 | | | listed by Hyman 1954 as described by Pearse |
| Oligoclado floridanus Pearse, 1938 | 1935 | | | listed by Hyman 1954 as described by Pearse |
| Hoploplana inquilina thaisana (Pearse) Hyman, 1940 | 1938 or earlier | | | Commensal in the snail Thais floridana floridana; also found with oysters and barnacles. Hyman review of Pearse whole mounts. |