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1068. The left coracoid of the same Trionyx. 



1069. The left scapula and acromial process of a freshwater Tortoise (Emys). 



1070. The left coracoid of the same species. This is remarkable for the great 

 length and slenderness of the columnar scapula. 



1071. The right scapula and acromial process of a large Tortoise (Testudo niger). 



1072. The right coracoid of the same Tortoise. 



1073. The left scapula and acromial process of the same Tortoise. 



1074. The left coracoid of the same Tortoise. 



The Tortoise (Testudo) is characterized by the shortness of the clavicular process in com- 

 parison with the length of the scapula, and by the shortness of the coracoid in comparison 

 with its breadth : the Trionyx is remarkable for the length of its clavicular process, which 

 almost equals that of the scapula ; and the Chelone by the length of its coracoid, which ex- 

 ceeds that of the scapula. The coracoid is less expanded in the Chelone than in the fresh- 

 water or land Tortoises : it is of intermediate breadth in the Trionyx, where it is further 



distinguished by a ridge upon its upper surface. 



i 



1075. The pelvis of a small Turtle (Chelone mydas). 



1076. The pelvis of a Trionyx (Trionyx australis). 



1077. The pelvis of an Emys. 



1078. The pelvis of a Tortoise (Testudo elephantopus). 



The pubic bones are more expanded at their outer and hinder angles in the Chelone, and 

 especially in the Trionyx, than in the Testudo, and the ' foramina ovalia ' are not divided by 

 the extension of bone between the pubis and ischium, in the Chelone and Trionyx, as they 

 are in the Emys and Testudo. 



