"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 chanieleons, 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, s; 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 43, p. 44; daz- 

 zling marks of, 152 ; variable coloration of, 

 45, 47, 113 ; winter plumage of, 113 



Python, 17s 



.Q 



Quagga, 138 

 Quail, 45. 79 

 Quetzal (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, iig 

 Ratel, 149 

 Rattlesnake, 174 

 Reed Patterns. See Background-picturing 



Patterns 

 Reptiles, obliterative shading of, 172 seq. 

 Rhinoceros, iig 



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 



Salamander, i6g, 181, 182 



Sandpiper, 27, Sf, 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 n. P- 28 



Secant Patterns. See Patterns 



Serval, J35 



"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, 15s, 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 

 121-122, p. 174; puff adder, 175; py-thon, 

 17s; 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 

 Sunrfleck Patterns. See Background-picturing 



Patterns 

 Swallow, figure 13, p. 28 

 Swan, 65 



Salmon, 162 

 Sanderling, 53 

 Sand Patterns. 

 Patterns 



See Background-picturing 



Tadpole, i6g 



Tail. See Appendages 



Tamandua. See Ant-Eater 



259 



