INDEX. 



827 



Bionomics Crustacea . 

 , , Fishes 



,, Insects 



,, Mollusca . 



,, Sponges 



Bipalium 

 Bipinnaria 

 Bird lice 

 Birds .... 



and Reptiles 



classification of . 



courtship of 



diet of 



eggs of . 



feathers of . 



flight of 



general characters of 



migration of 



moulting of 



nests of 



pedigree of. 



song of 



5 5 

 5 J 

 55 



5 5 



5 J 

 55 

 55 

 55 

 55 

 5 5 



55 



Birgus 



Bivalves 



Bivium of starfish . 



Bladder of frog 



of Mammals 



4O6 



55 



worms 



Blastocyst . 



Blastoderm .... 



Blastoidea . 



Blastomere . 



Blastopore .... 



Blastosphere .... 



Blastula .... 



Blatta 



Blind spot of eye . 



Blood . . . 

 ,, of frog 

 , , functions of . 



Boa ..... 



Body cavity .... 

 of Amphioxus 

 of Arenicola 

 of Balanoglossus . 

 of crayfish . 

 of earthworm 

 of Insects . 

 of lamprey . 

 of scorpion . 



PAGE 

 300 



545 

 34i 

 390 

 130 

 172 

 247 



345 

 625 



592 

 662 



653 

 655 

 654 

 629 

 649 

 625 



655 

 655 

 653 

 665 

 652 



293 



-408 



242 



691 

 i So 

 704 

 66 

 261 



67 

 67 



67 



55 



5 J 



55 

 55 



) 5 



478 

 28 



57i 



783 

 612 



33i 



445 



214 



417 



275 

 200 



55 



505 

 349 



PAGE 



Body cavity of spider . . 353 



,, ,, ofTeleostean . 484 



,, ,, of Vertebrates . 483 



Bone ..... 42 



Bonellia . . . .221 



Bony pike . . . 551 



Book scorpions . . -35 



Bopyridoe . . . .291 



Bos 736 



Bothriocephalus . . .184 

 Botryllus . . 433, 438 



Bougainvillea . . .162 

 Bovidas . . . -736 



Brachiodont .... 700 

 Brachiolaria . . . 247, 262 

 Brachionus .... 234 

 Brachiopoda. . . 235, 237 

 Brachyura .... 294 

 Brackish water fauna . . 798 

 Bradypodidae . . . 727 

 Bradypus .... 727 

 Brain, definition of . . 780 

 ,, of skate 

 ,, of Vertebrates 

 ,, summary of parts of . 

 Branchellion 

 Branchiae = Gills . 

 Branchial arches . 



,, sense organs . 

 Branchiobdella . . 219, 

 Branchiopoda . . . 285 

 Branchiostegal rays . . 533 

 Branchipus . . . 284, 285 

 Branchiura . . . .218 

 Breast bone .... 464 

 Brisinga .... 247 

 Brittle-stars .... 248 

 Bryozoa . . . 235, 236 

 Buccinum . . . .401 

 Buckie = Buccinum . . 401 

 Budding .... 54 

 Bugs . . . .323 



Bulbus arteriosus . . -536 



Bulla 401 



Bunodont . . . 700, 730 

 Bursa Fabricii . . . 642 

 Butterflies .... 344 

 Byssus . . . . .384 



CADDIS flies .... 344 



466 

 470 

 232 

 381 

 462 



474 

 231 



