Stylochus tripartitus Hyman, 1953 | Aug, 1936 | | | on kelp rhizoids, one specimen taken alive. |
Stylochoplana gracilis Heath & McGregor, 1912 | prior to 1953 | | kelp | collected by McGregor and Yonge. |
Notoplana saxicola (Heath & McGregor, 1913) | Aug, 1936 | | | collected by Hyman on kelp rhizoids. |
Notoplana acticola (Boone, 1929) | prior to 1953 | | | |
Notoplana sciophila (Boone, 1929) | prior to 1953 | | | stated by Boone to occur in the vicinity of Pacific Grove. |
Eurylepta aurantiaca Heath & McGregor, 1912 | prior to 1912 | | | collected by Heath. |
Trigonostomum tori Willems, Artois, Vermin, & Schockaert, 2004 | pre 1986 | | | Karling (coll. SMNH) |
Eurylepta species (3) Morris, Abbott & Haderlie, 1980 | 1980 or earlier | | | from exposed, deeply shaded, surfaces of seaweed. Low intertidal zone. |
Polycystis ali form California Karling, 1986 | Mar-Apr 1969 | | | tide pools and shallow water, shell gravel, stones and algae in several places. |
Gyratrix hermaphroditus Ehrenberg, 1831 | Mar-Apr 1969 | | sand, pebbles | several places in the tidal zone and in tidepools, sand, pebbles and algae. |
Gyratrix hermaphroditus Ehrenberg, 1831 | Sep 1960 | | sand, pebbles | several places in the tidal zone and in tidepools, sand, pebbles and algae. |
Leptoplana littoralis Morgan, 1905 | 1905 or earlier | | | Pacific Grove, California. |
Proschizorhynchella lingulata Karling, 1989 | Sep 1960 | | sand | under wrack on a sandy beach. |
Promesostoma dipterostylum Karling, 1967 | Sep 15, 1960 | | seaweed and stones | Great Tidepool, washed out from seaweed and stones. |