382 INDEX-GLOSSARY. 



Leech = Hirudo, q. e. 

 Lemurs, 349, 357. 



Lens, in the Eye A firm refracting structure, 104, 134, 174, 222, 256, 305. 

 Leopard, 349. 

 Lepidosiren, 153. 

 Lepidosteus, 349. 



Lepus (Rabbit), 135, 268-310, 347 ; L. variabilis, 349. 

 Life History, 7. See Development. 

 Ligament, 109, 178. 

 Light. See Eye. 

 Limb-girdle. See Girdle. 



Limbs Eana, 185 ; Columba, 239 ; Lepus, 280. 

 Lime, 90, 113, 121, 188. 



Limnaea (Xi/xyaTos, living in a Xi/j-un or marsh), 36. 

 Line, pallial, 110. 

 Lion, 349. 



Liver A gland, usually digestive, derived from and opening into the mid- 

 gut, 57, 94, 126, 141, 160, 191, 242, 287, 288. 

 Liver-rot, 28. 

 Lobes Of Liver, 160, 191, 244, 287, 330; of cerebral hemispheres, 301, 



337; Olfactory 1., 168, 210, 252, 301 ; Optic, 169, 211, 253, 302. 

 Lobi inferiores, in Scyllium Two oval swellings on the ventral surface of 



the thalameiicephalon, 168. 

 Lobster, 107. 

 Lobules, 288. 

 Locomotion Amoeba, 10 ; Hydra, 25 ; Distoma, 34 ; Lumbricus, 65 ; 



Hirudo, 81 ; Astacus, 91 ; Anodonta, Unio, 119; Comparison of, 318. 

 Lombok, 350. 



Lumbricus (Earthworm), 17, 54-71, 135, 340. 

 Lung A respiratory organ adapted for breathing ordinary air, 129, 204, 



248,293,315. 

 Lyell, 348. 

 Lymph, 165. 

 Lymphatics A system of vessels by which (1) Part of the digested food, 



(2) Plasma and white corpuscles exuded in excess through the capillaries 



are carried into the blood-system, 200, 248, 292. 

 Lymph-heart, 200, 204. 

 Lymph-sinus, 192, 200. 

 Lymph-space, 150, 168, 172, 210, 248, 292. 

 Lymph-system; Amphioxus, 142; Scyllium, 165, Rana, 200; Columba, 



248 ; Lepus, 292 ; Comparison of, 314. 



