Tom Iredale examines a haul of Heart urchins, Low Islands, Queensland, 1928 [picture].

Title devised by cataloguer based on inscription.; In: Presentation album to Mattie Yonge by the Australian Museum team who joined the Great Barrier Reef Expedition, Low Islands, Queensland, 1928.; Part of the Great Barrier Reef Expedition, 1928-1929 photographic collection.; Inscriptions: "T. Iredale, Australian Museum, meditates on the numerical strength of the huge haul of maretia ovata (Sea porcupines or heart urchins) made with the Agassiz trawl in 10-12 fms. off Low Isle"--In red ink on protective sheet over photograph.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-vn3989400-s26