THE  ORNITHORHYNCHUS  PARADOXUS. 
233 
Ft.  In. 
Length  of  the  web  projecting  beyond  the  claws  of  the  fore  feet    .    .  a 
Breadth  of  the  fore  foot  expanded   4a. 
Length  of  the  tail   4^ 
Breadth  of  the  tail  at  the  broadest  part   3-|- 
Length  of  the  hind  leg  to  the  extremity  of  the  longest  claw    ...  4 
Breadth  of  the  hind  foot  expanded   2-|- 
Female  specimen  shot  in  the  Yas  River. 
Ft.  In. 
Length  from  the  extremity  of  the  mandibles  to  the  extremity  of  the  tail    1  7 
Length  of  the  upper  mandible   2|- 
Breadth  of  the  upper  mandible   2-f- 
Length  of  the  lower  mandible  
Breadth  of  the  lower  mandible   l-f- 
Length  of  the  fore  leg  and  foot   4-|- 
Length  of  the  fore  foot   2-f 
Breadth  of  the  fore  foot  when  expanded   2-|- 
Length  of  the  web  projecting  beyond  the  claws   a 
Length  of  the  tail   5-|- 
Breadth  of  the  tail  at  the  broadest  part   2^ 
Length  of  the  hind  leg  and  foot   3-f- 
Length  of  the  hind  foot  to  the  extremity  of  the  longest  claw  ...  2-|- 
Of  fifteen  specimens  shot  and  captured  alive,  the  length  of  the  males  averaged  from 
1  foot  7  to  1  foot  8  inches  (measuring  from  the  extremity  of  the  mandibles  to  that  of 
the  tail)  ;  and  that  of  the  females  from  1  foot  6  to  1  foot  7  inches. 
During  my  stay  at  Gudarigby,  the  farm  of  Mr.  W.  H.  Button,  near  the  Murrum- 
bidgee  River,  a  male  was  shot  which  measured  1  foot  1 1-f-  inches  in  length  ;  but  the 
relative  proportions  of  the  other  parts  were  not  so  great  as  might  have  been  expected. 
Male  specimen  shot  in  the  Murrumbidgee  River. 
Ft.  In. 
Length  from  the  extremity  of  the  mandibles  to  the  extremity  of  the  tail  1  11-=- 
Length  of  the  upper  mandible   2-|- 
Breadth  of  the  upper  mandible   2-f 
Length  of  the  tail   6-|- 
Breadth  of  the  tail  at  the  broadest  part   2^- 
Expansion  of  the  fore  foot   4 
Length  of  the  spur  on  the  hind  leg   4- 
The  narrower  tail  and  small  proportion  of  the  beak  to  the  length  of  the  body  made 
