EXISTING SPECIES OF THE GENUS PHASCOLOMYS. 
Table 10.—Measurements of Lower Teeth Series of Tasmanian 
Species. 
Number of Specimen .. iF 2. 3. 4. 5. | 6. 1. BG: 
Juv 
Length, teeth series... | 40 48.5| 52 52 51 50 | 48 | 48.5| 42° 
* M* not in correct position. 
Some of the main features in the above Tables may be sum- 
marized as follows:— 
1.—King, Deal, and Flinders Islands Species. 
Basal length » x Be ae re) 2h = 13250 
Greatest breadth aa zs — eC 99 - 107 
Teeth—upper series ae af a +s 40 - 45 
» lower series ae Js Ae ae 41 - 46 
Length of humerus Ee Fe ote ~~ 90.5 — .98 
+ femur Re ne -- 120 - 125 
Greatest width of humerus std in a 41.5- 42 
2.—Tasmanian Species. 
Basal length Bis ae Pt: ae we 135 —- 151 (163) 
Greatest breadth + fe ~ st 116 - 128.5 (138) 
Teeth—upper series 3a ee AR a 47 - 50 (51) 
sat) LOWEEANCS « - ae oe 35 48 - 52 
Length of humerus ae hc a . llO-- 115 
a femur Se o a -. 3 3 147 
3.—P. mitchelli. 
Basal length Sn ae F ts Pee i: eee) | 
Greatest breadth a a0 oe -. 127 - 155 
Teeth—upper .. ra = a ae 50 - 52 
4 slower. % as oe Be ae as 52 - 654 
Length of humerus aed =P a s- 116 =, 128 
” femur od ne ae v4 150 - 171 
4.—P. latifrons. 
Basal length re oe ae ae .- 144 - 162 
Greatest breadth de as = ~ 116 — 184 
Teeth—upper’ .. ne ae oe ale 47 - 62 
os | Tower: $a nF en a 48 - 48.5 
Length of humerus 3 ee en Be eb | 
i femur ve °F ns we 135 
The structural peculiarities of P. latifrons, such as the very pro- 
minent post-orbital processes and the hairy muzzle, serve to dis- 
tinguish it at once. In regard to the other three groups, the dif- 
ference is mainly one of size. It will also be noticed that, so far as 
the measurements are concerned, the Tasmanian species and P. 
latifrons are very closely similar to one another. 
The Island species, the Tasmanian and P. mitchelli appear to 
represent three well-marked forms, so far as size is concerned. The 
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