| Haplognathia asymmetrica Sterrer, 1991b | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Haplognathia gubbarnorum (Sterrer, 1969) | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with detritus and sparse seagrass | sample LZ 9, south end of Watson's Bay |
| Haplognathia rosea (Sterrer, 1969) | 26 Aug 1996 | lower intertidal | fine sand with seagrass between patch reefs | sample LZ3: beach off research station |
| Haplognathia ruberrima (Sterrer, 1966) | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Cosmognathia arcus Sterrer, 1991a | 26 Aug 1996 | lower intertidal | fine sand between patch reefs | sample LZ 1: beach off research station |
| Cosmognathia bastillae Sterrer, 1991a | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Pterognathia ctenifera Sterrer, 1970a | 26 Aug 1996 | lower intertidal | fine sand with seagrass between patch reefs | sample LZ3: beach off research station |
| Pterognathia sica Sterrer, 2001 | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Agnathiella nominata Sterrer, 2001 | 26 Aug 1996 | lower intertidal | fine sand with seagrass between patch reefs | sample LZ3: beach off research station |
| Agnathiella nominata Sterrer, 2001 | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Labidognathia longicollis Riedl, 1970a | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Tenuignathia rikerae Sterrer, 1976 | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Vampyrognathia varanus Sterrer, 2001a | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Goannagnathia susannae Sterrer, 2001a | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Goannagnathia susannae Sterrer, 2001a | 26 Aug 1996 | lower intertidal | fine sand between patch reefs | sample LZ 1: beach off research station |
| Gnathostomula sp. 1 Sterrer, 2001a | 26 Sep 1996 | lower intertidal | fine sand between patch reefs | sample LZ 1: beach off research station |
| Gnathostomula sp. 1 Sterrer, 2001a | 27 Aug 1996 | 0 m (mid-tide level) | fine sand with fine seagrass | sample LZ 9, south end of Watson's Bay |
| Austrognathia australiensis Sterrer, 2001a | 26 Sep 1996 | lower intertidal | fine sand between patch reefs | sample LZ 1: beach off research station |
| Austrognathia christianae Farris, 1977 | 26 Aug 1996 | lower intertidal | fine sand between patch reefs | sample LZ 1: beach off research station. ID as A. cf. christianae. |