Zoological Society. 



137 



hand it is longer and larger than that of T. Javanica^ which is re- 

 markable for the shortness of the facial portion. These differences 

 approximate the skull under consideration to that of T. Tana ; there 

 are, however, ample differences between the skulls of T. Ellioti and 

 T. Tana. The skull of the former of these two animals is rather 

 smaller than that of T. Tana, has the muzzle relatively shorter, the 

 nasal bones shorter, and broader behind ; the zygomatic arch deeper, 

 and the perforation in the malar bone much smaller (less than half 

 the size). In the structure of the teeth, moreover, there are some 

 differences worthy of note. The incisors and premolars in T. Ellioti 

 are relatively smaller than in T. Tana ; but a more important distinc- 

 tion — and one which distinguishes the new T'upaia from the other 

 three species noticed — consists in the form of the third premolar : it 

 here resembles the last, or fourth premolar iu all respects, except- 

 ing in being of smaller size ; having like that tooth a distinct inner 

 lobe : this lobe in the other species of Tupaia is represented only by 

 a minute and indistinct tubercle. The corresponding lobe in the last 

 premolar in T. Ellioti is larger than usual, and so is the posterior 

 inner lobe of the true molars. Subjoined are the principal dimen- 

 sions of the skulls of the four* species of Tupaia. 



Total Icngtli of skull 



Length of ditto to the posterior \ 

 margin of the auditory bulla j 



Width of ditto, measuring fromi 

 the outer surface of the zy- > 

 goma J 



Width of ditto between orbits ... 



Length of palate 



of nasal bones 



Width of ditto in front 



of ditto behind 



Length from anterior part of] 

 first premolar to hinder mar- > 

 gin of last true molar J 



Length of lower jaw 



Height of ditto, measured from 1 

 apex of coronoid process ... J 



in. lin. 

 2 4 



1 Of 



n 



1 3^ 



IH 

 \% 



2i 



9^ 



1 6| 

 6^ 



in. lin. 



T.Tana 



2 1 



7 



1 H 

 11 

 If 

 2| 



9| 



1 7 

 6i 



T.ferni'T.ferrti 

 ginen. ginea. 



lin. in. lin. 

 2 Oi 



1 10 



1 Oi 



1 0^ 



Gf 

 Oi 1 

 8i 

 If 

 2*'0 



9 



9 



T.FA- 

 lloti. 



in. lin. 

 t 



1 7i 

 10^ 



l.i 



3^ 



7h 



1 3 

 6^ 



T. Java- 

 nica. 



in. lin. 

 I 4| 



1 24 



9f 



Gi 



8i 



4§ 



H 



6 



10 



5^ 



2. On new species of Mammalia and Birds from 

 Australia. By J. Gould, F.R.vS., F.Z.S. etc. 



The collection recently sent home by Capt. Owen Stanley and 

 Mr. MacGillivray, the able naturalist of H.M.S. * Rattlesnake,' now 

 exploring the coasts of Northern and Eastern Australia, is a very fine 

 one ; it has been procured on what may be considered hitherto un- 

 trodden ground, I cannot therefore do better than give a list of the 



* I do not include the " Tupai de Pe'ffou," because it is not yet determined that 

 that animal is a distinct species from the Tupaias of the Indian Islands, 

 t The occipital portion of the cranium is wanting iu the specimen. 



Ann. b^' Mag. N. Hist. Ser. 2. Vol.wi. 10 



