PROCEEDINGS 



GENERAL MEETINGS FOR SCIENTIFIC BUSINESS 



ZOOLOGICAL SOCIETY OF LONDON. 



PAPERS. 



26. A Study o£ the Remarkable Tortoise, Testudo loveridgii 

 Blgr., and the Morphogeny of the Chelonian Carapace. 

 By Joan B. Pkoctee, F.Z.S. 



[Received May 22, 1922 : Read June 13, 1922.1 



(Plates I.-III.*; Text-figures 1-21 ; and Table.) 



Index. Page 



Introduction 483 



General Account 484 



Material and history ; Characteristics ; Affinities ; 

 Habitat and habits. 



External Characters 487 



Shape and proportions ; Coloration ; Head ; Limbs ; 

 Tail ; Epidermal shields. 



Skeleton 496 



Bony carapace of adult ; Bony plastron of adult ; Skull ; 

 Vertebral column ; Ribs ; Pectoral girdle ; Pelvic 

 girdle. 



Development 507 



Ribs; Carapace; Plastron. 



Discussion 514 



Morphogeny of the Carapace and Plastron ; Origin of the 

 costal and neural plates. 



Summary ' 521 



Notes 522 



Bibliography .,..; 524 



Introduction. 



In the preparation of the present paper, I am indebted to 

 many persons for help and various courtesies. My especial 

 thanks are due to Mr. A. Loveridge, for his generosity in allowing 

 * For explanation of the Plates, 'see p; 526. 



Proc. Zool. Soc— 1922, No. XXXIV. 34 



