LAND-TOETOISES OF MAUEITIUS AND EODEIGUEZ. 159 



Pelvis. — T. triserrata. We have two pelves nearly perfect, three fragments, and 

 one right pubis. Two are of great size ; although one of these is of such large size, yet 

 the os ilium is very narrow and thin. This is probably due to bone-absorption owing to 

 age. The terminal portion of the pubic process is flattened horizontally, and is sur- 

 rounded laterally by a deep groove. 



The distinctive characters of T. leptocnemis appear of too slight a character to be of 

 great certainty, especially as no perfect pelvis is known. 



T. inepta. Our previous collection of portions of a male and female pelvis has been 

 greatly enriched by the addition of four perfect pelves and of three halves. There is one 

 immense os ilium, which is very broad but much compressed, and evidently belonged to 

 a very old male. There is a femur probably belonging to this pelvis. 



T. iriscrruta. T. inepta. 



millim. ruillim. millim. millim. 

 Longest inner vertical diameter of pelvis from summit of ilium 



to symphysis 156 . . 138 



Longest inner horizontal diameter of pelvis . . 120 



Shortest inner horizontal diameter of pelvis hetween ilio-pubic 



prominences . . 80 



Longest diameter of foramen obfcuratorium . . 36 



Width of symphysial bridge . . 25 



Breadth of posterior portion of ossa ischii . . 55 



Length of os ilii 140 . . 108 147 



Least width of os ilii 29 . . 25 40 



Proximal width of os ilii . . 54 85+ 



Femur. — The sixteen new examples have so much the same facies that it is impos- 

 sible to distinguish between the two species. There does not seem to be a specimen of 

 T. leptocnemis. 



millim. 



Length of femur 194 



Least circumference 90 



Width of condyle 73 



This femur probably belongs to T. inepta. 



Tibia. — Two right and two left. These show no peculiarity, except that one is 

 stouter than the others. 



millim. 



Length of tibia 144 



Circumference, least 55 



Breadth at upper end 46 



II. Testudo Vosmjeri. Rodriguez. 



All the remains from this island are referable to one species only, notwithstanding 

 ;he large series of bones examined. The experience of Dr. Gilnther points to the same 

 conclusion. 



Skull. — The additions to our previous fragment consist of one imperfect specimen of 

 arge size, two occipital crests, and one very perfect example of a young individual, the 

 ower jaw being also present. 



The largest probably measured 11-g- millim. long. 



Carapace. — There are two small carapaces, with their plastra, one being very 

 lerfect, and the posterior marginal plates of a third and large example; also two 



