INDEX 



Rhachianectes, 51, 80, 134, 146, 172 

 Rheomys, 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, l6l, 166, 173 



stomach, 313 



sumpfotter, see Mustela 



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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