Lemon shark  (Negaprion brevirostris)

Crustacea: Diverse group of arthropods (a phylum of animals with jointed limbs and a hard chitinous exoskeleton) characterised by the possession of two pairs of antennae, one pair of mandibles (parts of the mouthparts used for handling and processing food) and two pairs of maxillae (appendages used in eating, which are located behind the mandibles). Includes crabs, lobsters, shrimps, slaters, woodlice and barnacles.
Dorsal fin: The unpaired fin found on the back of the body of fish, or the raised structure on the back of most cetaceans.
Molluscs: A diverse group of invertebrates, mainly marine, that have one or all of the following; a horny, toothed ribbon in the mouth (the radula), a shell covering the upper surface of the body, and a mantle or mantle cavity with a type of gill. Includes snails, slugs, shellfish, octopuses and squid.

1. IUCN Red List (June, 2007)
   http://www.iucnredlist.org
   
2. Compagno, L.J.V. (1984) FAO Species Catalogue. Vol 4: Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 2: Carcharhiniformes. Food and Agricultural Organization of the United Nations, Rome.
   
3. Carwardine, M. and Watterson, K. (2002) The Shark Watcher's Handbook. BBC Worldwide Ltd, London.
   
4. Gill, A. (2005) Look into our eyes. BBC Wildlife, 23: 16 - 17.
   
5. Compagno, L.J.V., Fowler, S. and Dando, M. (2005) Sharks of the World. Harper Collins, London.
   
6. ReefQuest Centre for Shark Research (July, 2007)
   http://www.elasmo-research.org/education/ecology/estuaries-lemon.htm
   
7. International Plan of Action for the Conservation and Management of Sharks (July, 2007)
   http://www.fao.org/fi/website/FIRetrieveAction.do?dom=org&xml=ipoa_sharks.xml&xp_nav=1