A juvenile (TL = 25 cm) Australian lungfish, Neoceratodus forsteri. Note the strong dorso-ventral countershading and pale belly colouration. Scale bar = 1 cm. This photograph, taken by HJB and NJM, appeared as a cover image in the British Journal of Ophthalmology (Vol. 90, number 7) and is reproduced with kind permission from the BMJ Publishing Group.
Hart et al. BMC Ecology 2008 8:21 doi:10.1186/1472-6785-8-21