Sabinella munita (strengthened urchin-snail)

Saccostrea cucullata glomerata (Sydney rock-oyster)

Sagaminopteron ornatum (bat-wing sea-slug)

Sagenotriphora ampulla (vessel sinistral-creeper)

Salaputium micrum (tiny thickshell-clam)

Salinator fragilis (fragile air-breather)

Salinator tecta (cryptic air-breather)

Sandalops melancholicus (melancholy squid)

Sarepta tellinaeformis (tellin-shaped sarepta)

Sassia bassi (Bassian rock-whelk)

Sassia columnaria (Cape Pillar rock-whelk)

Sassia eburnea (pink-tipped rock-whelk)

Sassia epitrema (epitrema rock-whelk)

Sassia kampyla (curved rock-whelk)

Sassia parkinsoniana (Parkinson’s rock-whelk)

Sassia petulans (irritable rock-whelk)

Sassia sexcostata (six-ribbed rock-whelk)

Sassia subdistorta (distorted rock-whelk)

Sassia verrucosa (warted rock-whelk)

Scalenostoma lodderae (Loddera’s coral-snail)

Scaphander illecebrosus (attractive peanut-shell)

Scintillona cryptozoica (cryptozoic lepton)

Scissurella ornata (ornate slit-shell)

Sclerodoris BURN sp 01 (BURN sp 01 sclerodoris sea-lemon)

Sclerodoris tarka (tarka sea-lemon)

Scutellastra chapmani (Chapman’s limpet)

Scutellastra peronii (scaly limpet)

Scutus antipodes (common elephant-snail)

Scyllaea pelagica (pelagic sea-slug)

Seila albosutura (white-mouthed false-creeper)

Seila crocea (yellow false-creeper)

Seila insignis (unmarked false-creeper)

Seilarex turritelliformis (screwshell-like dextral-creeper)

Selastele retiarium (gladiator top-shell)

Semicassis adcocki (Adcock’s helmet)

Semicassis labiata (lipped helmet)

Semicassis pyrum (pear helmet)

Semicassis semigranosum (half-grained helmet)

Semicassis thomsoni (Thomson’s helmet)

Semipallium aktinos (shagreened scallop)

Sepia apama (giant cuttlefish)

Sepia braggi (Bragg’s cuttlefish)

Sepia cultrata (elongated cuttlefish)

Sepia hedleyi (Hedley’s cuttlefish)

Sepia novaehollandiae (New Holland cuttlefish)

Sepiadarium austrinum (southern bottletail-squid)

Sepioloidea lineolata (lined dumpling-squid)

Sepioteuthis australis (southern calamari)

Serpulorbis sipho (common worm-shell)

Serracorbula coxi (Cox’s basket-shell)

Serrata haswelli (Haswell’s margin-shell)

Serrata hedleyi (Hedley’s margin-shell)

Serrata mustelina (weasel margin-shell)

Serrata vincentiana (Vincentian margin-shell)

Sigapatella hedleyi (Hedley’s shelf-limpet)

Sinezona atkinsoni (Atkinson’s slit-shell)

Sinezona beddomei (Beddome’s slit-shell)

Sinezona pacifica (Pacific slit-shell)

Sinezona pulchra (beautiful slit-shell)

Sinum zonale (zoned sinum)

Siphonaria diemenensis (common siphon-shell)

Siphonaria funiculata (corded siphon-shell)

Siphonaria tasmanica (blue siphon-shell)

Siphonochelus syringianus (pan-pipes murex)

Siphopteron BURN sp 01 (BURN sp 01 siphopteron sea-slug)

Sirius badius (dark cap-shell)

Smeagol parvulus (little smeagol)

Socienna apicicostata (ribbed-apex false-creeper)

Socienna cylindricum (cylindrical false-creeper)

Socienna trisculpta (engraved false-creeper)

Solamen recens (recent mussel)

Solatisonax injussa (undesirable sundial-shell)

Solemya australis (southern date-shell)

Solen vaginoides (southern razor-shell)

Soletellina alba (white sunset-shell)

Soletellina biradiata (double-rayed sunset-shell)

Spectamen philippensis (Philip Island top-shell)

Specula mammilla (nippled false-creeper)

Specula turbonilloides (turbonilla-like false-creeper)

Spirula spirula (common ramshorn-squid)

Spisula trigonella (triangular trough-shell)

Splendrillia nenia (nenea turrid)

Splendrillia subviridis (greenish turrid)

Splendrillia woodsi (Woods’ turrid)

Spondylus tenellus (slender thorny-oyster)

Spurilla macleayi (Macleay’s sea-slug)

Stenochiton cymodocealis (common seagrass-chiton)

Stenochiton longicymba (long seagrass-chiton)

Stenochiton pilsbryanus (Pilsbry’s seagrass-chiton)

Stephopoma nucleocostata (ribbed-centred worm-shell)

Stilapex lactarius (milky brittlestar-snail)

Stiliger smaragdinus (emerald sea-slug)

Stomatella impertusa (common ear-shell)

Sunetta vaginalis (broad-hinged venus)

Sypharochiton pelliserpentis (snakeskin chiton)

Syrnola angasi (Angas’ pyramid-shell)

Syrnola aurantiaca (orange-red pyramid-shell)

Syrnola bifasciata (two-banded pyramid-shell)

Syrnola metcalfei (Metcalfe’s pyramid-shell)

Syrnola simplex (simple pyramid-shell)

Syrnola tincta (dyed pyramid-shell)