THE THYMUS, PARATHYROID, AND 



ULTIMOBRANCHIAL BODY 



THE ADRENAL GLAND 



THE GONADS 



ISLETS OF LANGERHANS 



CORPUSCLES OF STANNIUS 



THE PINEAL ORGAN 



GENERAL OBSERVATIONS 



13. The Neroous System 



THE CONDUCTING AND INTEGRATING SYSTEM 

 Mammal: Embryological development of the brain, 

 Anatomy of the adult mammal brain, Cranial 

 nerves of the mammal. The peripheral and 

 autonomic systems 

 Reptiles 

 Amphibians 

 Choanate fishes: Dipnoan, Actinistian 



Actinopterygians 



Chondrichthyes: Shark, Holocephalan 



Cyclosfomes: Lamprey, Myxinid 



General observations 

 SENSORY ORGANS 



Nasal structure in tetrapods 



Jacobson's organ: Tetrapods, Dipnoans and other 



fishes 



Taste buds 



The eye: The mammal eye. The eye of other 



vertebrates 



Median eyes 



General observations 



The ear: The tetrapod ear. The ear of fishes 



380 



381 

 382 

 382 

 382 

 382 

 382 



383 



383 

 383 



387 

 388 

 391 

 392 

 394 

 395 

 399 

 402 

 402 

 403 



404 

 404 



405 

 405 

 406 



The lateral-line system: Agnath, Shark, 

 Holocephalan, Fossil gnathstome fishes, 

 Actinopterygian fishes, Choanates, Amphibians, 

 General observations 

 Other acoustico-lateralis organs 

 GENERAL OBSERVATIONS ON THE NERVOUS SYSTEM 



14. The Muscular System 



INTRODUCTION 

 SKELETAL MUSCULATURE 



Extrinsic muscles of the eye 



The limb muscles of the mammal: The muscles of 



the pectoral appendage. The muscles of the pelvic 



appendage. General observations 



The comparative anatomy of shoulder muscles: 



Reptile, Amphibian, General observations 



General observations on muscles 



15. A Summation of Chordate 

 Morpholoqij 



TERMINOLOGY AND DEFINITION 



INTERRELATIONSHIPS OF AGNATHS AND 



GNATHOSTOMES 



THE SHARK AS A PRIMITIVE VERTEBRATE 



THE ORIGIN OF TETRAPODS 



THE BIOGENETIC LAW 



VERTEBRATE PHYLOGENIES 



Bibliography 

 Index 



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418 

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420 



420 

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432 

 441 



442 



442 

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444 

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449 



459 



