APPENDIX 



whalebone short, coarse and widely 

 spaced 2. to 4 grooves on the throat no 

 dorsal fin greatest length, 48 feet. 



B. Suborder Odontoceti. Toothed Whales. 



I. Family Physeteridae. Sperm Whales. 



Head large and blunt a single blowhole 

 40 to 50 teeth in the lower jaw no 

 functional teeth in upper jaw a dorsal 

 hump greatest length, 70 feet. 

 II. Family Ziphiidse. The Ziphioid Whales. 



Head pointed snout produced in form 

 of a beak a single crescent-shaped 

 blowhole on top of head one or two 

 pairs of functional teeth in lower jaw 

 no teeth in upper jaw greatest length, 

 30 feet. 



III. Family Delphinidae. Porpoises. 



a. Subfamily Delphininae. 



Medium size two or more neck verte- 

 brae joined single crescent-shaped blow- 

 hole on top of head teeth in both jaws 

 usually a high dorsal fin greatest 

 length, 30 feet. 



b. Subfamily Delphinapterinae. White Whale 



and Narwhal. 



Medium size head small and neck ver- 

 tebrae all separated single crescent- 

 shaped blowhole on top of head no 

 dorsal fin flippers very broad greatest 

 length, 20 feet. 



IV. Family Platinistidae. Fresh Water Porpoises. 



Small size neck vertebrae all separate 

 single crescent-shaped blowhole on top 

 of head all inhabit fresh or brackish 

 water greatest length, 12 feet. 

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