﻿OSTEOLOGY 
  OF 
  TESTUDO 
  PRAEEXTANS 
  — 
  GILMORE 
  

  

  305 
  

  

  Careful 
  comparison 
  made 
  of 
  the 
  other 
  skeletal 
  parts 
  preserved 
  

   with 
  these 
  various 
  specimens, 
  with 
  each 
  other 
  and 
  with 
  homologous 
  

   bones 
  of 
  other 
  species 
  of 
  Testudo, 
  failed 
  to 
  disclose, 
  except 
  that 
  of 
  

   size, 
  differences 
  that 
  would 
  be 
  of 
  assistance 
  in 
  specific 
  differentiation. 
  

   On 
  that 
  account 
  there 
  seems 
  do 
  point 
  in 
  illustrating 
  or 
  describing 
  

   these 
  parts 
  here, 
  although 
  most 
  of 
  the 
  bones 
  present 
  are 
  in 
  excelhMit 
  

   preservation. 
  In 
  order, 
  however, 
  that 
  there 
  may 
  be 
  a 
  record 
  of 
  rela- 
  

   tive 
  proportions 
  between 
  carapace 
  and 
  limb 
  bones, 
  a 
  table 
  of 
  measure- 
  

   ments 
  of 
  the 
  more 
  important 
  elements 
  of 
  the 
  specimens 
  here 
  dis- 
  

   cussed 
  is 
  given 
  (table 
  8). 
  

  

  Table 
  7. 
  

  

  -Comparative 
  measurements 
  {in 
  millimeters) 
  of 
  plastral 
  scutes 
  of 
  Testudo 
  

   praeextans 
  

  

  Table 
  8. 
  — 
  Comparative 
  measurements 
  (in 
  millimeters) 
  of 
  girdle 
  and 
  limb 
  bones 
  of 
  

  

  Testudo 
  praeextans 
  

  

  Measurement 
  

  

  U.S.N.M. 
  

   No. 
  15878 
  

  

  U.S.N.M. 
  

   No. 
  16732 
  

  

  U.S.N.M. 
  

   No. 
  16728 
  

  

  U.S.N.M. 
  

   No. 
  15874 
  

  

  Greatest 
  lenp;th 
  of 
  coracoid 
  

  

  Greatest 
  width 
  at 
  inner 
  end 
  

  

  Greatest 
  length 
  of 
  scapula 
  from 
  tip 
  to 
  tip. 
  

  

  Greatest 
  length 
  of 
  humeru.s 
  

  

  Greate.'^t 
  length 
  of 
  ulna 
  

  

  Greatest 
  length 
  of 
  radius 
  

  

  Greatest 
  length 
  of 
  femur 
  

  

  Greatest 
  length 
  of 
  tibia. 
  

  

  Greatest 
  lengt 
  h 
  of 
  fibula 
  

  

  80 
  

  

  88 
  

   77 
  

   153 
  

   155 
  

   99 
  

   98 
  

  

  82 
  

  

  65 
  

  

  151 
  

  

  153 
  

  

  78 
  

  

  77 
  

   80 
  

  

  74 
  

  

  76 
  

  

  1 
  150 
  

  

  157 
  

   99 
  

   97 
  

  

  113 
  

   82 
  

   82 
  

  

  I 
  Estimated. 
  

  

  Feet. 
  — 
  Ail 
  four 
  of 
  the 
  National 
  Museum 
  specimens 
  considered 
  in 
  the 
  

   I)receding 
  pages 
  have 
  various 
  parts 
  of 
  the 
  carpi, 
  tarsi, 
  and 
  feet 
  present, 
  

   l>Mt 
  only 
  in 
  No. 
  15878 
  arc 
  the 
  bones 
  preserved 
  at 
  all 
  in 
  articulation. 
  

   Tlie 
  right 
  forefoot, 
  with 
  cari)us 
  and 
  radius, 
  although 
  lacking 
  a 
  few 
  

   elements, 
  has 
  the 
  others 
  articulated 
  in 
  normal 
  relationship 
  as 
  siiown 
  in 
  

   plate 
  44, 
  figure 
  2. 
  This 
  foot 
  clearly 
  shows 
  the 
  presence 
  of 
  five 
  well- 
  

   developed 
  digits, 
  each 
  having 
  a 
  daw. 
  The 
  snudl 
  blocklike 
  bones 
  of 
  

   the 
  carpus 
  are 
  but 
  little 
  disturbed 
  and 
  can 
  be 
  quite 
  certainly 
  identified. 
  

   The 
  ulnare 
  and 
  intermedium 
  furnish 
  the 
  main 
  articulation 
  of 
  the 
  ulna, 
  

   which 
  is 
  missing. 
  Occujjying 
  the 
  position 
  of 
  the 
  radiale 
  at 
  th(> 
  distal 
  

   end 
  of 
  the 
  radius 
  is 
  an 
  angular 
  blocklike 
  element 
  that, 
  following 
  Baur 
  

  

  