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  Anatomy 
  and 
  Classification 
  of 
  the 
  Order 
  Iniomi. 
  

  

  Suborder 
  3. 
  Ateleopoidea. 
  

  

  Body 
  elongate, 
  naked 
  ; 
  dorsal 
  short, 
  just 
  behind 
  the 
  head 
  ; 
  

   anal 
  long, 
  united 
  to 
  the 
  reduced 
  caudal 
  ; 
  pectorals 
  lateral 
  ; 
  

   pelvics 
  in 
  advance 
  of 
  the 
  pectorals, 
  well 
  separated, 
  each 
  of 
  a 
  

   simple 
  or 
  bifid 
  ray 
  with 
  or 
  without 
  a 
  vestigial 
  ray 
  in 
  its 
  axil. 
  

   Mouth 
  small, 
  subterminal, 
  protractile 
  downwards 
  ; 
  jaws 
  with 
  

   bands 
  of 
  small 
  villiform 
  teeth 
  ; 
  one 
  supramaxillary. 
  Sub- 
  

   operculum 
  excluding 
  operculum 
  from 
  margin 
  of 
  gill-opening 
  ; 
  

   branchiostegals 
  6 
  to 
  8, 
  curved 
  upwards. 
  Cranium 
  in 
  great 
  

   part 
  cartilaginous, 
  resembling 
  that 
  of 
  Aidopus 
  in 
  form, 
  the 
  

  

  Fig. 
  7. 
  

  

  fiv- 
  

  

  c 
  

  

  ..r* 
  

  

  ••—eaj 
  3 
  

  

  A 
  

  

  B 
  

  

  Ateleopus 
  indicus. 
  

  

  A. 
  Pectoral 
  arch, 
  ptte, 
  post-temporal; 
  scl, 
  supraclei 
  thrum; 
  cl, 
  cleithrum 
  ; 
  

  

  sc, 
  hypercoracoid 
  (scapula) 
  ; 
  cor, 
  hypocoracoid; 
  car, 
  cartilage 
  to 
  

   which 
  pelvis 
  is 
  articulated 
  ; 
  r, 
  cartilage 
  representing 
  radials. 
  

  

  B. 
  Pelvis, 
  pv, 
  pelvic 
  ossifications 
  ; 
  /, 
  foramina 
  ; 
  c, 
  posterior 
  cornua 
  ; 
  

  

  x, 
  place 
  of 
  insertion 
  of 
  fin-ray. 
  

  

  posterior 
  surface 
  nearly 
  vertical 
  with 
  a 
  small 
  occipital 
  crest, 
  

   the 
  upper 
  surface 
  flattish, 
  much 
  broadened 
  behind 
  the 
  orbits; 
  

   frontals 
  separated 
  by 
  a 
  wide 
  fontanel 
  except 
  posteriorly 
  ; 
  

   parietals 
  separated 
  by 
  the 
  supraoccipital 
  j 
  epiotics 
  and 
  opis- 
  

   thotics 
  absent 
  ; 
  pterotic 
  large, 
  separated 
  from 
  exoccipital 
  by 
  

   cartilage 
  ; 
  sphenotic 
  with 
  a 
  prominent 
  process, 
  as 
  in 
  Aidopus 
  ; 
  

   basisphenoid, 
  alisphenoids, 
  and 
  orbitosphenoid 
  absent. 
  Pec- 
  

   toral 
  radials 
  represented 
  by 
  a 
  cartilaginous 
  plate 
  ; 
  pelvis 
  

   represented 
  by 
  a 
  cartilaginous 
  plate 
  containing 
  two 
  small 
  

  

  