324 
Lady-fish, metamorphosis of (illus.), 
98. 
Larva, 92; of the mosquito, 93 ; 
of butterfly pupating (illus.), 94; 
of the honey-bee, 152. 
Leaf-cutting ant mimicked by tree- 
hoppers (illus.), 220. 
Lemur (illus.), 302. 
Lemur varvus (illus.), 302. 
Lemurian realm, 3802. 
Lepas, adult and larva (illus.), 195 ; 
metamorphosis of (illus.), 101. 
Lerema acctus, distribution of 
(illus.), 273. 
Lerneocera (illus.), 188. 
Life cycle, 78. 
Life, communal, 168; duration of, 
101; primitive, 21; processes, 
21; social, 149. 
Light, influence of, on animals, 
237, 
Lipeureus densus (illus.), 188. 
Littoral fauna, 306. 
Lizard, alligator (illus.), 204. 
Lizzta koellikert, eye of (illus.), 
238. 
Locust, post-embryonie develop- 
ment of (illus.), 91. 
Locusts of Galapagos 
(illus.), 280. 
Louse, sucking (illus.), 188. 
Islands 
Macropus rufus, 189. 
Mad Tom (illus.), 182. 
Male, 57. 
Mammals, care of young of, 268. 
Manatee (illus.), 277. 
Man-of-war, Portuguese (illus.), 
175. 
Mantis (illus.), 127. 
Many-celled animal, 2. 
Marine Protozoa, 15. 
, 
ANIMAL LIFE 
Marks, recognition, 22, 129, 223. 
Medusw, 41. 
Megalops, 97. 
Melanerpes formicivorus bairdit, 
feeding habit of (illus.), 128, 129. 
Membracidae mimicking Sauba 
ant (illus.), 220. 
Mesoderm, 83. 
Metamorphosis, 90; of Albula vul- 
pes (illus.), 98; of Anosia plex- 
ippus (illus.), 92; of barnacle 
(illus.), 101; of butterfly (illus.), 
92; of crab (illus.), 97; of in- 
sects, 90; of lady-fish (illus.), 
98; of Lepas (illus.), 101; of 
mosquito (illus.), 93; of sea-ur- 
chin (illus.), 96: of sword-fish 
(illus.), 99; of toad, 94, (illus.), 
95; of Xiphias gladius (illus.), 
99. 
Metazoa, 32. 
Metridium dianthus (illus.), 48. 
Micro-organism, 16. 
Migration of lemming, 118; of lo- 
eust, 118. 
Mimickry, 218. 
Mind, 255. 
Mining-bee, nest of (illus.), 160. 
Molt, 91. 
Monarch butterfly (illus.), 219; 
mimicked by Viceroy butterfly 
(illus.), 219. 
Monogamy, 135. 
Mosquito, auditor organ of (illus.), 
235; head of (illus.), 127; meta- 
morphosis of (illus.), 98; young 
stages of (illus.), 147. 
Moth, cankerworm (illus.), 59. 
Mountains as barriers to distribu- 
tion, 293. 
Mouth parts of mosquito (illus.), 
127. 
