50 Mr. F. E. Beddavd o?i the 
apparent from tlie following series of measurements^ which 
are based upon taking the entire length of the ilium from 
its anterior extremity to the end of its attachment to the 
vertebral column behind at 100, the breadths being calcu- 
lated as percentages. The measurements are : — 
Balearica chrysopelargus 62*4 
Aramus scolopaceus 61'3 
Grus australasiana 56"5 
Gi'us carunculata 54"3 
Tetrapteryx paradisea 51'6 
It is clear that the most marked break in this series, wliich 
is arranged in numerical sequence, is between Balearica and 
the rest of the true Cranes ; furthermore that Balearica is 
very close to Aramus in these proportions. If the Cranes 
were to be classified by this character alone, Aramus and 
Balearica would be placed together and contrasted with the 
remaining genera. 
§ The Hind Limb. 
I do not find my measurements of the femur, tibio-tarsus, 
and tarso-metatarsus of Aramus quite in accord with those 
given by Fiirbringer. He gives the respective lengths as 
23, 39'5, and 37*5, the length of the entire limb being con- 
sidered as 100. I find in my skeleton of Aramus scolopaceus 
that the actual lengths are — femur 3 inches, tibio-tarsus 
6 inches, and tarso-metatarsus 4J inches; or, to make use of 
the more accurate system of measurement in millimetres, 
femur 81 mm., tibio-tarsus 152 mm., and tarso-metatarsus 
112 mm. These lengths give, when reduced to percentages 
of 100 for the whole limb, 23-5, 44, and 32*5. The difiFer- 
ences in the measurements of Fiirbringer and myself are not 
very great ; but they are of importance to me as showing 
a closer resemblance to Balearica than would appear from 
the measurements of Fiirbringer. The various segments of 
the hind limb of Balearica measure in millimetres 120, 263, 
and 230 ; reduced to parts of 100 these measurements 
become 19"6, 42*9, and 37*5 (not going beyond one place of 
decimals). This is clearly a series of measurements which 
