Measurement of riba. 



63 



Binops Astonii has a thorax 16 mm. from behind forwards close 

 to the spinal column. Ribs wide tangentially at the angles and inter- 

 costal spaces nearly obliterated. The ribs are very thin near the 

 posterior borders and inferiorly. 



Rhinolophus tridens. Ribs broad above and behind, breadth dimi- 

 nishes as the ribs are traced down. 



The middle ribs are slightly concave from before back. 



The intercostal spaces are absent above and behind in the middle 

 of the thorax. 



lUiinopoma macrophyllus has the posterior eight ribs broad above 

 and behind and the intercostal spaces are absent, in the back part of 

 the thorax. 



Simia Satyrus. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



Vi 





15 



10 



9 



9 



10 



11 



11») 



10 



8 



5 



6 



4 



Breadths 

 at lower ends. 



8 



6 



6 



6 





— 



8 



8 



7 



7 



7 



8 



Breadths 

 at the angles. 



Cynoccphalus Sphyiix thorax 160 mm. in depth from 1^' to the 

 last dorsal. 



The lower ends of the ribs are expanded quite at their extremities. 

 The widening (8 mm.) is carried up in the last rib. From the third 

 to the 11**' (inch). The ribs are 6 mm. at the lower end and 8 — 10 mm. 

 at the middle. 



Macacus rhesus has ribs with wide middle thirds narrow and round 

 lower thirds except at the ends. The tangential diameters are the 

 most considerable. There is a peculiarity of this nature. The tenth 

 flO"') for example first diminishes then continues. The same then 

 increases at the angles. 



Lower end — 3 mm. at 2 cm. 2,3 mm. at lower angle, three mm. 

 middle 2,5, upper angh; 3 mm. M. fuliginosus different. In some 

 skeletons the above character is best seen in the middle ribs. 



^) The diameters become less a little above the lower ends and then increase. 

 The breadths of the anterior ribs, as the ribs are traced np diminish at first and 

 then increase thorax 113 mm. 



