INDEX 



Rhachianectes, 51, 80, 134, 146, 172 



Rheorays, 24, 37, 185, 277 



Rhizomyidae, 127 



right whale, see Eubalaena 



ribs, 161, 166, 177 



river otter, see Lutrinae 



rorqual, 51, 202, 256 



Rodentia, 12, 35 



rostrum, 56 



Salientia, 13 



scapula, 215 



sea cow, see Sirenia 



seal, see Phocidae 



earless, see, Phocidae 



elephant, see Mirounga 



fur, see Callorhinus 



hair, see Otariidae 

 sea-lion, see Otariidae 

 sea otter, see Enhydrinae 

 sense, acoustic, 68 



olfactory, 74 



visual, 61 

 Serpentes, 12 

 shank, 296 



Sibbaldus, 118, 134, 149, 172, 303 

 Sirenia, 12, 40, 53, 76, 110, 140, 165, 



192, 216, 246, 300 

 skin, 52 

 skull, 107 

 sloth, 4, 154, 318 

 Sorex, 275 

 Soricidae, 28 

 Sotalia, 256 

 Spalax, 127 



spermaceti organ, 99, 104, 311 

 sperm whale, see Physeter 

 Steller sea cow, see Hydrodamalis 



sea-lion, see Eumetopias 

 Steno, 204 



Stenodelphis, 57, 85, 172 

 Stenorhynchus, 242 

 sternum, 161, 166, 173 

 stomach, 313 

 sumpfotter, see Mustek 

 swimming methods, 9 

 Sylvilagus, 24, 38 



tail, 183 



Talpidae, 27 

 Tapiridae, 24, 90 

 tarsus, 283 

 Tatusia, 126 

 teeth, 82 

 Tenrecidae, 28 

 Teonoma, 107 

 Thalarctos, 12, 24, 30 

 thorax, 153 

 tibia, 296 

 tongue, 77 



toothed whales, see Odontoceti 

 Trichechus, 25, 40, 83, 196 

 trunk, 153 

 Tursiops, 57, 90, 99 

 turtle, marine, 212, 262 

 mud, 19 



ulna, 233 



urogenital system, 314 

 Ungulata, 12, 38 

 Ursidae, 30 



vascular system, 322 

 vertebrae, caudal, 196 



cervical, 138 



lumbar, 161, 168, 180 



sacral, 179 



thoracic, 157 

 visual sense, 61 



walrus, see Odobenidae 



water opossum, see Chironectes 

 rat, 36 

 shrew, 28 



Weddell seal, 18 



whalebone, 86 



whale, balaenid, 134, 153 

 baleen, see Mysticeti 

 bottlenose, see Hyperoodon 

 blue, see Sibbaldus 

 bowhead, see Balaena 

 finback, see Balaenoptera 

 gray, see Rhachianectes 

 humpback, see Megaptera 

 killer, 68, 155 

 right, see Eubalaena 



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