INDEX AND GLOSSARY. 



ABD 



A BDOMEN, the group of seg- 



* ments of the body which con- 

 tains the digestive organs. 



Aboral, the extremity opposite to the 

 mouth. 



Acamarchis, a moss-polype, 75 



Acamhocephala, 66 



Acarus, a mite, 109 



Acephala. headless molluscs, 95 



Acmeta, 27 



Actinia, a sea anemone, 42 



Adaptive characters, 10 



Adductor muscles, 83 



Agrites 131 



Alcycnaria, 46 



Alcyonium, 46 



Alternation of generations, 40 



Ambulacra, the tube-feet on which 

 sea-urchins move, 49 



Amoeba, 22 



Amoebiform, composed of protoplasm 

 like amoeba?. 



Amphipoda, 103 



Analogy, similarity in function, 12 



Anelasma, a barnacle which lives on 

 living fishes, 106 



Anemone, sea, 42 



Animalcule, a minute animal, 



Anomura, 107 



Antennae, jointed ieelers, as in in- 

 sects. 



Antennules, 99 



Anthrenus, 132 



Ant-lion, 127 



Ants, 127, 135 



Aphaniptera, fleas, 128 



Aphides. 123 



Arachnoidea, 98, 108 



CAL 



Arenicola, the lug bait, 71 

 Arthrppoda, 14, 96 

 Asc.-u-is, round worms, 65 

 Assimilation, the process wheieby 



food is converted into blood. 

 Auricles, 94 



DACTERIUM, the walking-stick 

 *-^ insect, also the most minute 



protoplasmic particles, 125 

 Falani, acorn shells, 106 

 Barnacles, 106 

 Fees, 134 

 Beetles, 131 

 Bilateral symmetry, equality and 



proportion of the two correspond- 

 ing sides of an animal. 

 Bivalves, 80 

 Blood, 2 



Borlasia, a large sea worm, 60 

 Brachiopoda, 80 

 Brachyura, 108 

 Branchiae, gills. 

 Branchiopoda, 104 

 Breathing, the process whereby 



oxygen is taken in to aerate the 



blo^L 



Bryozoa, 74 

 Bugs, 123 

 Butterflies, 129 

 Byssus, a fibrous material whereby 



mussels and other molluscs anchor 



themselves, 84 



'ADDIS FLIES, 127 



' Calcareous, consisting of lime. 



