Pogaina paranygulgus | Apr 1969 | intertidal | | in tidepools with algae. |
karlingi pacifica | Apr 1969 | | mud sand | under mud and algae on a sandy shore at low tide |
Duplacrorhynchus minor | Sep 17, 1960 | | sand, mud | low water, superficial layer of the sandy mudflat under Enteromorpha. |
Minona obscura | Sep 17, 1960 | | mud | Elkhorn Slough, above the road, Enteromorpha and mud, slightly brackish, abundant. |
Allostoma amoenum | Sep 17, 1960 | | sand | below the road, wet sand under Enteromorpha on the mudflat, abundant. |
Pacifides psammophilus | Apr 9, 1969 | | | sandy beach off Elkhorn Slough, Otoplana-zone, abundant. |
Paraustrorhynchus pacificus | Sep 19, 1960 | 26 m | fine sand with mud | off Fishermens Wharf. |
Gyratrix hermaphroditus | Sep 1960 | | sand, pebbles | several places in the tidal zone and in tidepools, sand, pebbles and algae. |
Gyratrix hermaphroditus | Mar-Apr 1969 | | sand, pebbles | several places in the tidal zone and in tidepools, sand, pebbles and algae. |
Cheliplana setosa | Apr 1969 | | sand | in the tidal zone. |
Cheliplana californica | Apr 1969 | | | coastal groundwater. |
Cheliplana elkhornica | Sep 1960 | | sand | Otoplana zone, clean sand. |
Cheliplana elkhornica | Mar 1969 | | sand | Otoplana zone, clean sand. |