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CONTENTS. 
Page 
Order XII.— Cursores,.24-2 
XIII.—Grallatores, .... 245 
XIV—Pinnatipedes, .... 263 
XV.—Palmipedes, .... 266 
XVI—Inertes,.282 
Class Third.—Reptiles,.283 
Order I.—Chelonia, ..... 285 
II. — Sauria, . . . . . 288 
III— Ophidia,.297 
IV. —Batracliia,.306 
Class Fourth.—Fishes..311 
Order I. — Cyclostomi,.313 
II. —Selachii. ..... 314 
III. —Sturiones, ..... 319 
IV— Plectognathi, .... 320 
V. —Lophobranchii, .... 323 
VI—Malacopterygii Abdominales, . 324 
VII. -Subraehiati, . . 336 
VIII. -Apodes, . . 341 
IX. —Acantbopterygii, .... 344 
DIVISION II.—IN VERTEBRAL ANIMALS. 
Class I—Mollusc a. 
Order I. — Heteropoda, ..... 376 
II. —Cephalopoda, ..... 377 
III. —Trachelipoda, .... 387 
IV. —Gasteropoda,.415 
V. —Pteropoda, . 427 
Class II.—Conchifera,.429 
Order I.—Monomyaira, .... 430 
II.—Dimyaira,.441 
Class III. — Cirripeda,.469 
Order I.—Pedunculata, ..... 469 
II.— Sessilia, . . . . . 471 
