Gazelle : The Palestinian Biological Bulletin (ISSN 0178 – 6288) . Number 134, February 2016, pp. 1-44. | Page 25

25 Prof. Dr. Sc. Norman Ali Bassam Khalaf-von Jaffa and his beloved wife Ola Mostafa Khalaf and his beloved daughter Nora Norman Ali Khalaf are standing near the fossil skeleton of the Whale Dorudon atrox at Wadi El-Hitan (Whales Valley), Al-Fayyum, AlSahraa Al-Gharbiah (Western Desert), Egypt. 11.07.2012. https://www.flickr.com/photos/50022881@N00/15297854928/ Sawfish Sawfishes, also known as carpenter sharks, are a family (Pristidae) of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged so as to resemble a saw. Several species of sawfishes can grow to about 7 m (23 feet). The family as a whole is largely unknown and little studied. The Pristidae are the only living family within the order Pristiformes, whose name comes from the Ancient Greek: πρίστης prístēs ―saw, sawyer‖ (Wikipedia). Sawfishes should not be confused with sawsharks (order Pristiophoriformes), which have a similar appearance (Wikipedia). All species of sawfishes are listed as Endangered or Critically Endangered by the IUCN, and face the threat of extinction as a result of habitat loss and overfishing. Global populations of every species of sawfishes are estimated to have fallen to less than 10% of their historic levels. The smalltooth Gazelle : The Palestinian Biological Bulletin – Number 134 – February 2016