Pulmonata
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Sandgotna skole | Vestland, Norway | 1 | 1 | 0 | 2015-05-21 | |
| Sandshamna | Møre og Romsdal, Norway | 2 | 2 | 2 | 2020-07-17 | |
| Sandsli | Vestland, Norway | 2 | 2 | 0 | 2012-05-22 | |
| Sandvika | Akershus, Norway | 11 | 2 | 7 | 2015-06-09 | |
| Sareptaveien, Vikane | Østfold, Norway | 1 | 1 | 0 | 2019-09-22 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-06-13 | |
| Sem | Akershus, Norway | 1 | 1 | 0 | 2005-08-29 | |
| Semdammen | Telemark, Norway | 1 | 1 | 0 | 2013-09-04 | |
| Semsvannet | Akershus, Norway | 4 | 3 | 0 | 1994-05-18 | |
| Sennsjøen | Innlandet, Norway | 2 | 2 | 0 | 1996-09-10 | |
| Sentrum | Buskerud, Norway | 1 | 1 | 1 | 2018-07-17 | |
| Setesdal Videregåande skule/Avd Hornnes | Agder, Norway | 1 | 1 | 1 | 2015-05-29 | |
| Sillongen | Innlandet, Norway | 1 | 1 | 0 | 1990-09-19 | |
| Skien | Telemark, Norway | 2 | 2 | 0 | 2012-05-17 | |
| Skirstadtjernet | Innlandet, Norway | 2 | 2 | 0 | 2012-09-26 | |
| Skogen ved Laglim | Innlandet, Norway | 3 | 3 | 3 | 2012-05-31 | |
| Skogen ved skolen | Innlandet, Norway | 1 | 1 | 1 | 2012-05-22 | |
| Skolegården | Rogaland, Norway | 6 | 3 | 10 | 2016-09-01 | |
| Skolelab Blindern | Oslo, Norway | 1 | 1 | 0 | 2016-06-09 | |
| Skolelaboratoriet i realfag, UiB | Vestland, Norway | 1 | 1 | 1 | 2012-04-11 | |
| Skolens tomt/naturområde | Oslo, Norway | 4 | 4 | 2 | 2012-05-15 | |
| Skolevei | Akershus, Norway | 1 | 1 | 0 | 2018-06-18 | |
| Skomakerdiket | Vestland, Norway | 6 | 6 | 2 | 2012-09-12 | |
| Skranevatnet | Vestland, Norway | 9 | 5 | 6 | 2014-05-22 | |
| Slettaelva | Troms, Norway | 5 | 2 | 1 | 2002-05-10 | |
| Slettebakken | Vestland, Norway | 1 | 1 | 1 | 2015-05-16 | |
| Smertudammen | Østfold, Norway | 1 | 1 | 0 | 2017-08-29 | |
| Smertudammen Kråkerøy | Østfold, Norway | 4 | 1 | 0 | 2019-09-19 | |
| Smøla | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-04-23 | |
| Solberg i Asker | Akershus, Norway | 16 | 2 | 0 | 2012-06-04 | |
| Solheimsvannet | Vestland, Norway | 4 | 2 | 0 | 2014-10-17 | |
| Solli | Akershus, Norway | 1 | 1 | 1 | 2017-06-07 | |
| Solmyrås-området | Telemark, Norway | 1 | 1 | 0 | 2017-06-07 | |
| Sommerro | Vestfold, Norway | 2 | 2 | 2 | 2015-07-08 | |
| Spildervatnet | Nordland, Norway | 2 | 1 | 0 | 1993-06-10 | |
| Spirabukta | Akershus, Norway | 2 | 2 | 0 | 2015-06-16 | |
| St Olav videregående skole | Rogaland, Norway | 3 | 2 | 0 | 2014-05-26 | |
| St. Olav videregående skole | Rogaland, Norway | 2 | 1 | 2 | 2014-05-22 | |
| Stafsengen | Østfold, Norway | 3 | 1 | 0 | 2019-09-21 | |
| Stangvik | Møre og Romsdal, Norway | 1 | 1 | 1 | 2015-06-12 | |
| Stav skole | Akershus, Norway | 27 | 1 | 5 | 2017-09-15 | |
| Stavsjø | Innlandet, Norway | 10 | 4 | 0 | 1993-06-07 | |
| Steglevannet | Buskerud, Norway | 2 | 2 | 0 | 1989-10-06 | |
| Stend vidaregåande skule | Vestland, Norway | 5 | 1 | 1 | 2019-06-03 | |
| Stikletjern | Østfold, Norway | 6 | 4 | 0 | 1996-08-19 | |
| Stokkavatnet | Rogaland, Norway | 2 | 1 | 0 | 2001-05-07 | |
| Stokkavatnet | Rogaland, Norway | 1 | 1 | 0 | 2007-10-03 | |
| Stokkavatnet | Nordland, Norway | 1 | 1 | 0 | 1990-09-18 | |
| Storavatnet | Vestland, Norway | 9 | 2 | 0 | 1993-09-02 | |
| Stordal | Møre og Romsdal, Norway | 2 | 2 | 0 | 2007-04-17 |