DR, F, LEUTHNER ON THE ODONTOLABINI. 413 
Notwithstanding the conspicuous differences in size and colour of O. delesserti, this 
South-Indian species differs little from the former species in structure. The mandibles 
of the telodont form are larger than in 0. cwvera, and there are two rather widely 
separated spines at the base (Pl. XCII. figs. 1, 10). I know of no mesodont form parallel 
to that of O. cuvera; fig. 2 is more like O. mowhoti (Pl. XCI. fig. 5) from Siam. The 
greatest development of the mandibles is found in O. burmeisteri (Pl. XCIL. fig. 5a, 5), 
which, like the telodont form of O. delesserti, has two basal teeth. The central branch, 
which is dichotomous in the latter species, is simple, and nearer the middle in 0. bur- 
meistert. The individuality of the telodont mandibles is so great in O. burmeisteri that it 
is impossible to meet with two exactly alike. The specimen figured differs considerably 
Map II.—Map of the Indo-Malayan Region, showing the Distribution of the Species 
allied to Odontolabis burmeisteri and O. wollastoni. 
1 sinensis 
3 cuvera ‘& 
ES ae a 2 
== INDIA aA =: 
SSS = = 
ass 5 A. 2 mouhoti 
2 S IjA xy 
—— 
6 Wollaston 
= === 
ES SS, 
== 
@ aeRinei =I 
— 
E 
Tit. ID, 
1. O. sinensis, Westw. 6. O. wollastoni, Parry. 
2. O. mouhoti, Parry. 7. O. yollenhoyeni, Parry, 
3. O. cuvera, Hope. 8. O. ludekingi, Vollenh. 
4. O. delesserti, Guérin, 9. O. lacordairii, Vollenh, 
5. O. burmeisteri, Hope. } b 
+. 0. gazella, Fubr. 
+. O. inequalis, Kaup (Nias). 
from Hope’s type and figure in possessing a strong ridge on the inner side of the 
mandibles, while in other specimens in the British Museum (as fig. 5 4) the mandibles 
