| Maehrenthalia americana Ax & Armonies, 1990 | Jul 13, 1988 | | mud | Salt marsh at the northern shore next to the 5th Avenue; muddy sediment with algal cover. |
| Haloplanella obtusituba Luther, 1946 | Jul 13, 1988 | | mud | Salt marsh at the northern shore;; muddy sediment with algal cover (salinity 12 to 13 o/oo). |
| Proxenetes arctica Ax & Armonies, 1990 | Jul 13, 1988 | | mud | Salt marsh of the northern shore. Muddy sediment with algal cover. |
| Ptychopera alaskana Ax & Armonies, 1990 | Jul 13, 1988 | | mud | Salt marsh at the northern shore next to the 5th Avenue. |
| Duplacrorhynchus major Schockaert & Karling, 1970 | Jul 13, 1988 | | mud | Salt marsh at the northern shore next to the 5th Avenue; mud with algal cover (salinity 12 to 13 o/oo). |
| Placorhynchus paratetraculeatus Ax & Armonies, 1990 | Jul 13, 1988 | | mud | Salt marsh at the northern shore next to the 5th Avenue (salinity 12 to 13 o/oo). |
| Baicalellia anchoragensis Ax & Armonies, 1990 | Jul 13, 1988 | | mud | Salt marsh of the northern shore next to the 5th Avenue. Muddy sediment (salinity 12 to 13 o/oo). |