Cake Sand Dollar (Arachnoides placenta)
Chek Jawa, 10th January 2016

Thick-edged Sand Dollar (Jacksonaster depressum)
Coney Island (Pulau Serangoon), 27th November 2015

Thick-edged Sand Dollar (Jacksonaster depressum)
Seringat-Kias, 28th June 2009

Keyhole Sand Dollar (Echinodiscus truncatus)
Tanah Merah, 8th February 2009

Cake Sand Dollar (Arachnoides placenta)
Cyrene Reef, 23rd May 2008