﻿OSTEOLOGY 
  OF 
  TESTIDO 
  PHAEEXTANS 
  — 
  GILMORE 
  303 
  

  

  The 
  entoplastra 
  in 
  all 
  the 
  specmiens 
  except 
  No. 
  15878 
  are 
  in 
  

   agreement 
  in 
  having 
  pointed 
  anterior 
  ends 
  and 
  a 
  broad 
  somewhat 
  

   rounded 
  posterior 
  border, 
  with 
  the 
  gular 
  scutes 
  overlapping 
  the 
  

   front 
  of 
  this 
  bone. 
  

  

  There 
  is 
  some 
  variation 
  in 
  the 
  extent 
  of 
  the 
  plastral 
  scutes 
  in 
  these 
  

   specimens, 
  as 
  shown 
  in 
  table 
  7. 
  

  

  Pelvis. 
  — 
  The 
  pelvis 
  of 
  specimen 
  No. 
  15874 
  is 
  in 
  an 
  unusually 
  perfect 
  

   state 
  of 
  preservation, 
  the 
  two 
  halves 
  being 
  coalesced 
  along 
  the 
  median 
  

  

  Figure 
  25. 
  — 
  Plastron 
  of 
  Testudo 
  praeexlans 
  Lambc, 
  type 
  (C. 
  N. 
  M. 
  No. 
  8401): 
  ab, 
  abdominal 
  

   scute; 
  an, 
  anal 
  scute; 
  ent, 
  entoplasiron; 
  /^m, 
  femoral 
  scute; 
  g, 
  gular 
  scute; 
  hum, 
  humeral 
  

   scute; 
  hyo, 
  hyoplastral 
  bone; 
  hypo, 
  hypoplasiral 
  bone; 
  pec, 
  pectoral 
  scute; 
  xiph, 
  xiphi- 
  

   piastral 
  bone. 
  One-sixth 
  natural 
  size. 
  

  

  line, 
  as 
  reprcscntt-d 
  in 
  figures 
  20 
  and 
  27. 
  The 
  i)elvis 
  of 
  No. 
  107i{2 
  

   is 
  also 
  well 
  preserved, 
  but 
  the 
  two 
  halves 
  were 
  separated 
  along 
  the 
  

   median 
  suture. 
  Except 
  for 
  minoi- 
  details 
  these 
  two 
  pelves 
  ai-e 
  in 
  

   close 
  agreement 
  and 
  thus 
  are 
  probably 
  tyi)ical 
  of 
  Testudo 
  pratcxtaiis. 
  

  

  Of 
  these 
  two 
  turtle 
  specimens 
  of 
  nearly 
  equal 
  size 
  and 
  presumably 
  

   of 
  equivalent 
  age 
  om(> 
  has 
  the 
  pelvic 
  sutures 
  coalesc(>d, 
  while 
  in 
  

   the 
  other 
  these 
  same 
  sutures 
  are 
  open, 
  thus 
  indicating 
  that 
  the 
  

   relative 
  age 
  of 
  an 
  individual 
  cannot 
  always 
  be 
  judged 
  by 
  the 
  non- 
  

   coalescence 
  of 
  the 
  sulural 
  junetures. 
  

  

  The 
  anterior 
  extremities 
  of 
  the 
  pui)es 
  are 
  complete 
  in 
  specimen 
  

   No. 
  15874, 
  which 
  shows 
  that 
  border 
  to 
  be 
  broadly 
  rounded, 
  thus 
  

  

  