LAND-TORTOISES OF MAURITIUS AND RODRIGUEZ. 



161 



of a coracoid foramen by ossification from the coracoid and precoracoid extending into 

 the epicoracoid region. 



Right 

 Left ., 



Total . 



Coracoid 



ankylosed. 



ruillim. 



9 



23 



32 



Coracoid free. 

 Total. (Large examples.) 

 milliiu. millim. 



29 



24 



53 



(11) 

 (12) 



(23) 



Total, 

 millim. 



38 



47 



85 



Coracoid fused. 



Length of scapula measured from the suture with 



the coracoid 



Circumference in its middle 



Longitudinal diameter of glenoid cavity 



Length of coracoid 



Greatest width of coracoid 



Length of precoracoid (acromion) 



A. 



millim. 



10.5 



35 



24 

 49 

 38 



48 



B. 



millim. 



40 

 30 



C (smallest). 



luillim. 



75 



8 

 19 

 35 



27 

 39 



Coracoid free. 



millim. 



132 -f 



50 

 304- 



50 4- 



millirn. 



60 



48 



Humerus. — There is nothing peculiar in our 54 specimens, the largest bone mea- 



suring : — 



ailliuis. 



Length (measured iu a straight line from the summit of the head to the middle of the trochlea ) . . 171 



Circumference of the narrowest part of the shaft 62 



Longest diameter of head 33 



Shortest diameter of head 29 



Extreme breadth between the condyles 50 + 



Pelvis. — Most of our examples are young, the symphysial bridge still being very 

 mrrow. 



Femur. — One of the 88 femurs is of gigantic size : — 



millim. 



Tho extreme length being 1G6 



The least circumference 68 



In conclusion, I would draw the attention of herpetologists to these collections of 

 VLascarene Tortoise-remains, now in the Zoological Museum at Cambridge, since they 

 brm by far the most complete series of specimens of these very interesting extinct 

 ■eptiles. I also add my best thanks to Prof. Newton for his kind help whilst preparing 

 hese notes. 



For the convenience of those who may wish to prosecute further the study of these 

 mimals, as well as to show the amount of materials on which the present remarks are 

 )ased, I append a list of the specimens in the Museum of the University which I have 

 consulted. 



Testudo triserrata. Mauritius. 



6 skulls and 2 lower jaws. (C.) One figured, Giintlier, pi. xxiii. fig. a. 



1 skull. New Coll. 



4 humeri, right. (C.) 



6 „ „ New Coll. 



2 „ left (C.) 



