INDEX 



575 



Hygric animals, 47, 378, 379 



of open lands, 458 

 Hygrobates albi?ius, 364, 365 

 Hygrocoles, 48 

 Hyla, 75, 396 

 H. viridis, 500 

 Hylidae, 426 

 Hylobms abietis, 544 

 Hylocichla mustelina, 380 

 Hymenodora, 264 

 H. glacialis, 275 

 Hymenoptera, Arctic, 508 



of the alpine zone, 499 

 Hypolimnion, 324, 334 



Ianthina, 273 



Ibex, 91 



Iceland, 100 



Ichthyomis, 473 



Idothea entomon, 140 



Iguana, 107 



/. iguana, 425 



Iguanid lizards, distribution, 113 



Ihering, 106, 175 4 , 286 28 , 420 J0 



Ilia, 183 



Iliocryptus sordidus, 329 



Immigrants from the ocean, 360 



Inachus, 188, 200 



Index species, 141 



India, effect of man on environment, 548 



Indo-Pacific-Antarctic, rivers of, 172 



Indo-Pacific fishes, 220 



Indus, fish fauna of, 26 



Industrial wastes, 550 



Influence of rivers on fertility, 172 



Inia, 311 



Inland waters, 288 



standing, 286 

 Insect pests, 553 

 Insectivorous birds in the alpine zone, 



.503 

 Insects, density of population, 464 



of the steppes, 459 

 Insular birds, 521 

 Insular reptiles, 521 

 Insulation by hair and feathers, 384 

 Internal fertilization, 51 

 Inuus speciosus, 424 

 Inverse stratification, 322 

 Iron in lakes, 291 



Island breeders. 482 

 Island communities, 515 

 Isoetes, 327 

 Isolation, in caves, 91, 536 



dairy breeds produced by, 74 



ecological, 74 



on islands, 517 



on mountains, 91, 497 



physiological, 74, 75 



primitive forms, 93 

 Isoplankts, 239 

 Isotoma nivalis, 508 

 /. saltans, 383, 498, 508 

 /. westerlundi, 498 

 Isotomurus palustris, 498 

 Issel, 376 2 ^ " 8 

 Iwanow and Philiptschenko, 95 3 



Jacana, 476 



Jacobi, 503 18 , 504 31 , 514 17 

 Jaculus, 414, 450 

 Jackel, 420 107 

 Jaderholm, 286" 

 Jamaica, 75 



amphibian and reptile fauna, 132 

 Janulus, 520 

 Japan Current, 244 

 Java, 30 



amphibian and reptile fauna, 132 

 Jeannel, 537 7 



Jelly-like tissue for flotation, 225 

 Jersey, 74 

 Jewell, 300 6 

 Jewell and Brown, 96" 

 John, 222 25 

 Johnston, 71 20 

 Johow, 22 1 21 



Jones, 71 35 ' 48 , 162", 222 71 

 Jordan, 95 5 , 134 36 , 162 29 , 300-", 357« 



420 105 , 488 12 

 Jordan and Evermann, 55--\ 96" 3 «, 162 30 , 



247 39 , 319 24 , 376 3 ' 18 , 526 8 

 Jordan and Seale, 96 27 , 222 82 

 Jordan's Rule, 75 



Joubin, 163 54 , 221 17 ^ 20 , 222 36 ^ 38 ' w - ™, 247 8 ' 20 

 Juan Fernandez, introduction of goats, 



70 

 Judeich and Nitsche, 22 33 , 145", 442 53 

 Julis, 178, 241 

 J. turcica, 282 



