INDEX 



697 



Labyrinthodonts, 256, 288, 295 



LACERTA, 304, 353 : External features, 

 304: Exo -skeleton, 305: Endo- 

 skeleton, 305-313 : Digestive sys- 

 tem, 313, 314 : Vascular system, 

 314, 315, 316, 318 : Organs of 

 respiration, 315, 318: Brain, 318, 

 319, 320 : Spinal cord, 320 : Organs 

 of special sense, 321, 322 : Urinary 

 and reproductive systems, 322, 323 : 

 Systematic position, 327 



Lacerta muralis, 348 



Lacertidce, 327*, 358 



Lacertilia, 324*, 327, 328, 329. 332, 

 333, 335, 336, 337, 338, 342, 345, 

 346, 347, 348, 349, 351, 353, 354, 

 358, 359 



Lacrymal bone, 307, 308 



Lacrymal gland, of Lizard, 321 : 

 Mammalia, 563 



Lacteals, 95* 



Lacustrine fauna, 616 



Lcemargus, 172, 175, 176 



Lagena, 208, 321, 322 See Ear 



Layenorhynchus, 544 



Lagomyidce, 474 



Lagopus scoticus, 602 



Lamarck, 629, 655, 656 



Lamarckian theory, 628 



Lambdoidal suture, 439 



Lamina perpendicularis, 438* 



Lamina terminalis, of Craniata, 99* 

 See Brain 



Lamna cornubica, 165 



Lampern, 120 



Lamprey See Petromyzon 



Lanarkia spinosa, 254 



Lancelot See Amphioxus 



Land tortoises, 325, 331, 357, 358 



Languets, 24*, 25, 29 



Lankester, E. R., 668 



Lapillus, 208*, 209 



Larks, 404 



Larus, 403, 411, 421, 429, 605 



Larvacea, 21*, 23, 28 



Laryiigeal nerves, of Craniata, 103 



Laryngo-tracheal chamber, 269, 295 



Larynx, of Lizard, 318 : Reptilia, 346 : 

 Bird, 385 : Rabbit, 453 



La Sueur, 662 



Lateral line, 105* : Petromyzon. 121 : 

 Dogfish, 140 : Holocephali, 183, 

 184 : Trout, 192, 194 : Ceratodus, 

 241 : Amphibia, 299 



Lateral line canal, 140 : Elasmo- 

 branchs, 174 



Lateral line organs, 105*, 174, 298 



Lateral nerve, of Craniata, 102 



Lateral plate, of Amphioxus, 59 : of 

 mesoderm, 118 



Lateral post-frontal, 308* 



Lateral temporal fossa, 309* 



Lateral vein, 91 



Lateral ventricle, of Craniata, 97 See 

 Braii i 



Laurentian period, 618 



Leather-backed Turtle, 336 



Leeuwenhoek, 649 



Lemur, 472 See Prosimii 



Lens, 106, 108 



Lens -capsule, 108 



Lens involution, 109 



Lepidosiren, 230. 2 .">(). i'.")l 



Lepidosteus, 213, 218, 221, 222, 223, 

 227, 229, 231, 232, 233, 234, i':J5 



Lepidosteus platystomus, 213 



Lepidotrichia, 202* 



Lepidotus maximus, 238 



Leporidce, 470, 474 



Leptocephalus, 235 



Leptoglossce, 327* 



LEPUS CUNICULUS, 432 : External char- 

 acters, 433, 434 : Skeleton, 434-444 : 

 Coelome, 444, 445 : Digestive organs, 

 445448 : Circulatory organs. 446 

 452 : Respiratory organs, 453, 454 : 

 Ductless glands, 454 : Nervous 

 system, 454, 455, 456, 457, 458: 

 Organs of special sense, 458 : Urino- 

 genital organs, 459, 460 : Develop- 

 ment, 461 : Systematic position, 

 474 



Lrpiis variabilis, 617 



Leuckart, 660, 661 



Leucocytes, 94 



Leydig's gland, 159* 



Lieberkuhn, 661 



Lienogastric artery, 151 



Limb-girdles, of Craniata, 80, 81* 

 See Pectoral arch and Pelvic arch 



Limb-skeleton, of Craniata, 79, 80 : 

 Dogfish, 145 : Elasmobranchii, 

 169 : Holocephali, 186 : Trout, 201, 

 202 : Teleostomi, 224 : Dipnoi, 

 243 : Frog, 265, 266 : Amphibia, 

 294: Lizard, 310, 311, 312, 313: 

 Reptilia, 342, 343, 344: Pigeon, 

 379, 380, 381 : Aves, 417, 419, 420 : 

 Rabbit, 442, 443, 444 : Mammalia, 

 500 : Prototheria, 505 : Metatheria, 

 508, 510 : Edentata, 511, 512, 513 : 

 Cetacea, 516 : Sirenia, 519 : Un- 

 gulata, 525 : Carnivora, 530 : Ro- 

 deiitia, 532 : Insectivora, 533 : 

 Chiroptera, 535 : Primates, 538, 539, 

 540, 



Limbs, of Craniata, 67, 81 : Dogfish, 

 141 : Elasmobranchii, 165, 166 : 

 Holocephali, 184 : Trout, 194 : 

 Teleostomi, 219 : Ceratodus, 240 : 

 Dipnoi, 250 : Frog, 257 : Amphibia, 

 294 : Lizard, 304, 305 : Reptilia, 



