608 



INDEX. 



Impcrfurata, 187. 

 Inachus, 478. 

 Intequitelie, 504. 

 Individual, 24, 25. 

 Infundibulum of Cteno- 



pbora, 2(53. 

 Infusoria, 191. 

 Insecta. 521. 

 Instinct, 94. 

 Iphimedia, 453. 

 Irenaeus, 435. 

 Iris. 88. 

 Irregular Sea-urchins, 



268 



Isidor of Seville, 133 

 Isis, 231 

 Isogonism. 240. 

 Isopoda, 450. 

 Isopods, Parasites of, 



362. 



Itch-mites, 492. 

 Ixodes, 493. 



Japyx, 528, 554. 

 Jassus, 571. 

 Jejunum, 57. 

 Jera, 460. 

 Julus, 521. 



Kammmiicke, 578. 

 Kermes, 569. 

 Kidneys, 75. 

 Kleinzirpen, 571. 

 Kochloriue, 446. 

 Kohlschnaken, 578. 

 Kolumbaczer, 577. 

 Kornmotte, 582. 

 Kupferglucke, 584. 

 Kurzdeckniigler, 590. 



Labidura, 556. 

 Labium, 523. 

 Labrum. 523. 

 Lac, 569. 

 Lachnus, 570. 

 Laciriia, 523. 

 Lacon, 589. 

 Lady-bird, c87. 

 Lajmodipodn, 454. 

 Lagena, 187. 

 Lamark, 144. 

 Lamellicornia, 5s'.t. 

 Lamia, 527, 588. 

 Lampyris, 536, 589. 

 Land-bugs, 572. 

 Land Crabs, 479. 

 Langwanzen, 572. 

 Lantern-carrier, 571. 

 Laomedea, 242. 

 Laphria, 576. 

 Larentia. 583. 



Larva, 119. 



Larva of Loven, 362. 



Lasia, 576. 



Lateral lines of Nema- 

 toda, 346. 



Laterigradne, 504. 



Laurer's canal, 318. 



Leaf-flea, 570. 



Leaf-lice, 570. 



Leaf-wasps, 594. 



Lecanium, 543, 569. 



Ledermuller, 133. 



Ledra, 571. 



Leech, 394. 



Leeuwenhoek, 133. 



Lemnisci of Acanthoce- 

 phala, 360. 



Lens. 87. 



Lepadidie, 445. 



Lepas. 445. 



Lepidocentrus, 295. 



Lepidoptera, 579. 



Lepisma, 554. 



Leptidre, 577. 



Leptodera, 350. 357. 



Leptodiscus, 198. 



Leptodora, 422. 



Leptoplana, 311, 316. 



Leptostraca, 448. 



Leptus, 495 



Lernrea, 436. 



Lernaeoeera, 436. 



Lernieodiscus, 447. 



Lernrcopoditlfe, 436. 



Lestoruis, 177. 



Lestrigonus, 455. 



Leucaltis, 222. 



Leucandra, 222. 



Leucetta, 222. 



Leuchtzirpen, 571. 



Leucifer, 471, 476.. 



Leucilla, 222. 



Leucochloridium, 321. 



Leucon, 470. 



Leuconia, 222. 



Leuconidae, 217. 



Leucons. 222. 



Leucortis, 222. 



Leucosolenia, 217, 222. 



Leuculmis, 222. 



Leucyssa, 222. 



Levantine sponges, 221. 



Libellula, 541, 562. 



Libcllula, Development 

 of, 545. 



Libellula, Rectal respi- 

 ration of. 72. 



Lice. 568. 



Lice-flies. 57.". 



Ligia, 459, 460. 

 I Ligula, 338. 



Ligulidrv, 32S. 



Limenitis, 585. 



Limexylon, 589. 



Limicolae, 385. 



Limnobates, 572. 



Limnobiidas, 578. 



Limnochares, 495. 



Limnodrilus. 385. 



Limnoria, 455, 460. 



Limulus, 483. 



Lina, 588. 



Linckia, 292, 293 



Linens. 343. 



Linguatulida, 487. 



Linnaeus. 134. 



Liotheum. 568. 



Liparis, 583. 



Liriope, 242. 



Lithistidae, 220. 



Lithobius, 520. 



Lithudes, 478. 



Lithotrya, 444. 



Liver, 59. 



Liver Fluke, 317, 322. 



Livia, 570. 



Lobophora, 258, 297. 



Lobosa. 185. 



Lobster, 477. 



Locusta, 558. 



Longhorns, 577. 



Longicornia, 588. 



Loopers. 582. 



Lophogaster, 475. 



Lophoseris, 232. 



Loricata, 477. 



Loven's larva, 308, 362. 



Lucanus, 589. 



Lucernaria, 258. 



Luidia, 275, 293. 



Lumbriculus, 385. 



Lumbricus, 385. 



Lungs, 69. 



Lungs. Effect of ap- 

 pearance of, on vascu- 

 lar system, 65. 



Lycsenidae, 585. 



Lycaretus, 374. 



LycoridEe. 379. 



Lycosa, 501. 



Lyda, 594. 



Lyell, 144. 



Lyell's doctrine of gra- 

 dual changes, 166. 



Lygaeus, 572. 



Lymnajus, Pulmonary 

 cavity of, 72. 



Lymph, 67. 



Lymphatic system, 67. 



Lysianassa, 451, 455. 



Lysidice, 379. 



Lystra, 571. 



