Today’s snail: Struthiolaria papulosa | Ostrich Foot Snail
seen from France
seen from China
seen from United States
seen from United States

seen from United States

seen from Türkiye
seen from Malaysia
seen from Japan
seen from Germany
seen from China
seen from United States

seen from Malaysia
seen from Philippines
seen from United Kingdom

seen from United Kingdom
seen from Czechia
seen from Singapore
seen from United States
seen from Netherlands
seen from China
Today’s snail: Struthiolaria papulosa | Ostrich Foot Snail
#3815 - Struthiolaria calcar
There's at least 20 extinct species in the genus, and some other extinct and living ones now placed in other genera, but just one living species left, which I'll cover later since I found some later in the trip.
S. calcar was a small species, barely reaching 5cm, and lived on the shores of New Zealand during the Miocene. Others in the family lived around the shorelines of Gondwana, and have been found fossilised in New Zealand, Australia, Antarctica, and South America, but these days only remain in New Zealand and eastern Australia.
Struthiolariids bury themselves in sand or mud, inhaling and exhaling seawater through two mucus-lined siphonal tubes, and extract suspended particulate organic matter with their gills.
Museum of the Vanished World, Duntroon, Aotearoa New Zealand