| Latocestus ocellatus Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | 10 specimens in tufts of algae growing on rocks. / algae growing on rocks |
| Alleena callizona Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | 1 specimen with complete female organs. / algae growing on rocks |
| Triadomma evelinae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | various specimens in the algae growing on rocks. / algae growing on rocks |
| Stylochoplana angusta (Verrill, 1893) | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Stylochoplana divae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Stylochoplana aulica Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | 20 specimens. / algae growing on rocks |
| Stylochoplana leptalea Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Notoplana sawayai Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | 2 specimens. / algae growing on rocks |
| Notoplana plecta Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Pucelis evelinae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | 6 specimens with "úteros repletos" / algae growing on rocks |
| Euplana hymanae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Acerotisa bituna Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Acerotisa leuca Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Dinizia divae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | captured along with Amphiscolops evelinae. / algae growing on rocks |
| Vorticeros cyrtum Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Vorticeros cyrtum amoma Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | |
| Acmostomum canarium Marcus, 1947 | Oct 1946; Jan 1947 | upper littoral | rocks | 10 specimens captured Oct 1946 along with Amphiscolops evelinae, Kalyptorhynchia, and Plagiostomidae; re-captured in Jan 1947. / algae growing on rocks |
| Plicastoma carvalhoi Marcus, 1947 | Oct 1946 | upper littoral | rocks | |
| Plicastoma phocae Marcus, 1947 | Jan 1947 | upper littoral | rocks | 1 juvenile and 1 full phase masculine. / algae growing on rocks |
| Plicastoma astrum Marcus, 1947 | Oct 1946 | upper littoral | rocks | |
| Amphiscolops evelinae Marcus, 1947 | Oct 1946 or Jan 1947 | upper littoral | rocks | in algae, and in tufts of algae dislodged during maximum ebb tide. / algae growing on rocks |
| Latocestus callizona (Marcus, 1947) | Oct 1946 or Jan 1947 | upper littoral | rocks | 1 specimen with complete female organs. / algae growing on rocks |