P. bridgesii, the sister species of the common aquarium pet P. diffusa (the spiked-top apple snail). Photographer: Hayes, Kenneth. Publisher: Hayes, Kenneth.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
