﻿122 
  

  

  Mr. 
  T. 
  Began 
  on 
  the 
  Anatomy 
  and 
  

  

  the 
  mesetlimoid 
  appears 
  as 
  a 
  large 
  plate 
  overlying 
  the 
  vomer 
  

   and 
  has 
  a 
  lateral 
  process 
  on 
  each 
  side 
  supporting 
  an 
  upwardly 
  

   directed 
  process 
  of 
  the 
  anterior 
  part 
  of 
  the 
  palatine, 
  in 
  front 
  

   of 
  which 
  that 
  bone 
  is 
  suturally 
  united 
  with 
  the 
  vomer 
  ; 
  the 
  

   well-developed 
  mesopterygoid 
  overlaps 
  the 
  parasphenoid 
  ; 
  

   the 
  series 
  of 
  circumorbitals 
  is 
  noteworthy 
  for 
  the 
  firm 
  attach- 
  

   ment 
  of 
  the 
  supraorbital 
  to 
  the 
  lateral 
  ethmoid 
  and 
  frontal 
  

  

  epo.-.J^ 
  

  

  ,-v* 
  :spo 
  

  

  Skull 
  of 
  Auloptis 
  filamentosus, 
  from 
  above 
  and 
  from 
  the 
  side. 
  

  

  v, 
  vomer 
  ; 
  eth, 
  mesetlimoid 
  ; 
  leth, 
  lateral 
  ethmoid 
  (prefrontal) 
  ; 
  n, 
  nasal 
  ; 
  

   in, 
  infranasal 
  ; 
  sor, 
  supraorbital 
  ; 
  por, 
  postorbital 
  ; 
  /, 
  frontal 
  ; 
  

   p, 
  parietal 
  ; 
  soc, 
  supraoccipital 
  ; 
  eoc, 
  exoccipital 
  ; 
  hoc, 
  basioccipital 
  ; 
  

   spo, 
  sphenotic 
  (postfrontal) 
  ; 
  pto 
  } 
  pterotic 
  ; 
  epo, 
  epiotic 
  ; 
  opo, 
  opis- 
  

   thotic 
  ; 
  pro, 
  prootic 
  ; 
  psp, 
  parasphenoid 
  ; 
  bsp, 
  basisphenoid 
  ; 
  asp, 
  

   alisphenoid 
  ; 
  osp, 
  orbitosphenoid 
  ; 
  t, 
  temporal 
  plate 
  (lateral 
  dermo- 
  

   occipital). 
  

  

  and 
  of 
  the 
  uppermost 
  postorbital 
  to 
  the 
  frontal 
  and 
  sphenotic 
  ; 
  

   there 
  is 
  a 
  well-developed 
  infranasal 
  ; 
  the 
  opercular 
  bones 
  are 
  

   remarkable 
  for 
  the 
  great 
  development 
  of 
  the 
  suboperculum, 
  

   which 
  forms 
  the 
  entire 
  posterior 
  margin 
  of 
  the 
  gill-opening; 
  

   the 
  branchiostegals 
  also 
  are 
  long 
  and 
  curved 
  upwards. 
  

  

  