﻿Classification 
  of 
  the 
  Order 
  Iniomi. 
  

  

  125 
  

  

  almost 
  touches 
  the 
  supraoccipital, 
  but 
  its 
  extremity 
  is 
  con- 
  

   nected 
  with 
  the 
  epiotic 
  by 
  a 
  ligament. 
  The 
  pelvic 
  bones 
  are 
  

   formed 
  much 
  as 
  in 
  Aulopus, 
  with 
  a 
  pair 
  of 
  posterior 
  processes 
  

   which 
  are 
  slender 
  in 
  Saurida, 
  short 
  and 
  laminar 
  in 
  Synodus. 
  

   The 
  vertebral 
  column 
  is 
  as 
  in 
  Aulopus, 
  except 
  that 
  there 
  are 
  

   no 
  upturned 
  centra 
  at 
  the 
  base 
  of 
  the 
  caudal 
  fin 
  ; 
  53 
  to 
  62 
  

   vertebrae 
  in 
  Synodus 
  and 
  Saurida. 
  

  

  In 
  addition 
  to 
  the 
  two 
  genera 
  just 
  named 
  this 
  family 
  in- 
  

   cludes 
  Baihysaurus 
  and 
  Harpodon; 
  the 
  latter 
  is 
  a 
  highly 
  

   epecialized 
  type, 
  in 
  which 
  the 
  maxillary 
  is 
  no 
  longer 
  recog- 
  

   nizable 
  as 
  a 
  separate 
  element; 
  the 
  skeleton 
  is 
  very 
  feebly 
  

   ossified 
  and 
  transverse 
  processes 
  are 
  not 
  developed 
  on 
  the 
  

   vertebrae, 
  the 
  ribs 
  being 
  sessile; 
  apparently 
  there 
  is 
  no 
  

   orbitosphenoid 
  and 
  the 
  frontals 
  and 
  alisphenoids 
  form 
  a 
  

   complete 
  double 
  interorbital 
  septum, 
  a 
  condition 
  approached 
  

   in 
  Saurida. 
  The 
  pectoral 
  arch 
  differs 
  from 
  that 
  of 
  Synodus 
  

   in 
  the 
  longer 
  and 
  narrower 
  supracleithrum, 
  the 
  almost 
  mem- 
  

   branous 
  coracoids, 
  and 
  the 
  absence 
  of 
  the 
  laminar 
  expansion 
  

   of 
  the 
  lowest 
  radial, 
  in 
  the 
  latter 
  character 
  agreeing 
  with 
  

   Saurida. 
  

  

  Fig. 
  4. 
  

  

  A. 
  B. 
  

  

  Pectoral 
  arch 
  of 
  A, 
  Bathypterois 
  longifilis 
  ; 
  B, 
  Synodus 
  lucioceps. 
  

   Lettering 
  as 
  in 
  figure 
  3. 
  

  

  Family 
  3. 
  Sudidae. 
  

  

  Chlorophthalmus, 
  usually 
  placed 
  near 
  Aulopus, 
  differs 
  from 
  

   that 
  genus 
  in 
  many 
  ways. 
  The 
  dorsal 
  fin 
  is 
  short 
  and 
  the 
  

   pelvic 
  fins 
  are 
  close 
  together; 
  the 
  maxillary 
  bears 
  a 
  single 
  

   supram 
  axillary 
  ; 
  the 
  vomerine 
  teeth 
  form 
  two 
  separate 
  

   patches; 
  the 
  skeleton 
  is 
  weakly 
  ossified, 
  there 
  is 
  no 
  orbito- 
  

   sphenoid, 
  the 
  parasphenoid 
  is 
  slender, 
  the 
  lateral 
  ethmoids 
  

   meet 
  in 
  the 
  middle 
  line, 
  the 
  anterior 
  attachment 
  of 
  the 
  palatine 
  

  

  