"Poor-me-one." See Goatsucker 



Porcupine, 119, 121 



Porpoise, 119 



Poulton, Prof. Edward B. 



extract from article by, 2 1 ; note by, on 

 South African chameleons, 241 



Prairie Skunk. See Conepatl 



Predators, balance between prey and, 7, 88 



Prey, balance between predators and, 7, 88 



Prongbuck, American, 145 



Protective Coloration 



basis of, 3; definition of, 24; erroneous 

 conception of, 4, 13 ; importance of slight 

 advantages of, in animal disguise, 4, 6, 7, 

 88 ; similarity of, in species of similar hab- 

 its, 5; underlying law of , 13-23. See also 

 Background-picturing Patterns, Counter- 

 shading, Markings, Mimicry, Obliterative 

 Coloration, and Patterns 



Protective resemblance, 24 note, 100 



Ptarmigan 



see figure 8, p. 26; figure 9, p. 26; figure 

 10, p. 26; figure 39, p. 44; figure 40, p. 44; 

 figure 41, p. 44; and figure 42, p. 44; daz- 

 zling marks of, 152; variable coloration of, 

 45, 47, 113; winter plumage of, 113 



Python, 175 



Q 



uagga, 138 

 uail, 45, 79 



uetzal (Resplendent Trogon), 95 

 R 



Rabbit, cottontail, 127, see Plate VII, opp. p. 

 119, figure 12, p. 28, and figure 84, p. 



128 



Raccoon, 119, 157 

 Rail, 61, figure 54, p. 58 

 Rat, 119 

 Ratel, 149 

 Rattlesnake, 174 



Reed Patterns. See Background-picturing 

 Patterns 



Reptiles, obliterative shading of, 172 seq. 

 Rhinoceros, 119 



Ridgeway, Robert, quoted, 54 note 

 Ripple Patterns. See Background-picturing 

 Patterns 



Rock Patterns. See Background-picturing 



Patterns 

 Ruddy Duck. See Duck 

 Ruptive Patterns. See Patterns 



S 



Salmon, 162 

 Sanderling, 53 



Sand Patterns. See Background-picturing 

 Patterns 



2 



Salamander, 169, 181, 182 

 Sandpiper, 27, 52, 53, 54, 61 

 SatyrincB. See Butterflies 

 Sawfly, 205 

 Scaup. See Duck 



Scent of animals, 3, 81 note, 137 note 

 Scorpion fly, 209 

 Scoter. See Duck 

 Sea-cow. See Manatee 

 Sea lion, 119 



Seal, 170, see figure 11, p. 28 

 Secant Patterns. See Patterns 

 Serval, 135 



"Sexually selected colors," erroneous theory 

 of, 5. 6 



Shadow-picturing Patterns. See Background- 

 picturing Patterns 

 Shark, 154, 163 

 Shearwater, 75 



Shore birds, obliterative patterns of, 52 

 Shrew, 119, 122, figure 13, p. 28 

 Sight of animals, 3, 81 note, 137 note, 164 

 Siren, 181 



Siskin, figure 13, p. 28 



Skunk, 123, 148, 149, 155, 250, figures 95-103, 

 pp. 148-150 



Skunk-blackbird. See Bobolink 



Sky Patterns. See Background-picturing Pat- 

 terns 



Sloth, mimicry of , 124, 125, 157 

 Snake 



anaconda, 154; boa, 132, 175; coral, 10; 

 copperhead, 82, 156, 174, 238, see Plate 

 XI, opp. p. 172; grass, 173 ; green, figures 

 i2i-i22,p. 174; puff adder, 175 ; python, 

 175 ; rattle, 174, figure 123, p. 174 

 Snipe, 33, 54, figure 25, p. 34, and figure 26, p. 

 34 



Snow Leopard. See Ounce 



Sparrow, 45, 78 



Speculum. See Markings 



Spermophile, 143, 144 



Spider, 210 seq., figure 127, p. 180 



Spilogale, 150 



Spoonbill, roseate, 154, see Plate VIII, opp. 



p. 147 and Plate IX, opp. p. 156 

 Squash bug, 202 



Squirrel, 27, 119, 143, 144, figure 13, p. 28 

 Stevenson, R. L., quoted, 6 

 Stilt, 27 

 Stint, 53 



Stripes. See Markings 



Sun-fleck Patterns. See Background-picturing 



Patterns 

 Swallow, figure 13, p. 28 

 Swan, 65 



T 



Tadpole, 169 



Tail. See Appendages 



Tamandua. See Ant-Eater 



