﻿KO. 
  1948. 
  NEW 
  BROTULID 
  AND 
  CARAPID 
  FISHES— 
  RADCLIFFE. 
  149 
  

  

  to 
  head 
  ; 
  ventrals 
  slender, 
  close 
  together, 
  each 
  consisting 
  of 
  2 
  closel}-- 
  

   bound 
  rays, 
  the 
  inner 
  1.61 
  in 
  head, 
  reaching 
  more 
  than 
  half 
  way 
  to 
  

   origin 
  of 
  anal; 
  ventral 
  base 
  slightly 
  behind 
  tip 
  of 
  humeral 
  symphysis; 
  

   pectorals 
  1.68. 
  

  

  Color 
  m 
  alcohol: 
  Fawn 
  on 
  back, 
  becoming 
  light 
  smoke-gray 
  on 
  

   head 
  and 
  belly; 
  anterior 
  rays 
  of 
  dorsal 
  and 
  anal 
  smoke 
  gray; 
  poste- 
  

   rior 
  rays 
  and 
  caudal 
  hght 
  clove 
  brown; 
  ventrals 
  gray; 
  pectorals 
  gray; 
  

   punctulate 
  with 
  darker; 
  inside 
  of 
  mouth 
  plumbeous, 
  changing 
  to 
  seal- 
  

   brown 
  in 
  region 
  surrounding 
  gills; 
  peritoneum 
  dark 
  seal-brown. 
  

  

  Type.— 
  Cat. 
  No. 
  74133, 
  U.S.N.M., 
  19.5 
  cm. 
  in 
  length, 
  taken 
  with 
  

   a 
  beam 
  trawl 
  at 
  station 
  5259 
  (lat. 
  11° 
  57' 
  30" 
  N.; 
  long. 
  121° 
  42' 
  15" 
  

   E.), 
  between 
  Miiidoro 
  and 
  Panay, 
  at 
  a 
  depth 
  of 
  312 
  fathoms, 
  on 
  a 
  

   bottom 
  of 
  gray 
  mud 
  and 
  globigerina 
  ooze. 
  

  

  The 
  close 
  relationship 
  of 
  Monomitopus 
  to 
  Neobythites 
  is 
  well 
  shown 
  

   in 
  the 
  characters 
  of 
  this 
  species 
  ; 
  the 
  bones 
  of 
  the 
  head 
  are 
  more 
  cav- 
  

   ernous, 
  the 
  scale 
  are 
  deciduous 
  but 
  NeohytJiites-like 
  in 
  character, 
  aiid 
  

   the 
  two 
  rays 
  composing 
  each 
  ventral 
  are 
  fused. 
  

  

  This 
  species 
  differs 
  from 
  our 
  examples 
  of 
  21. 
  nigripinnis 
  in 
  having 
  

   the 
  outer 
  row 
  of 
  teeth 
  in 
  the 
  jaws 
  enlarged, 
  the 
  armature 
  of 
  the 
  pre- 
  

   opercle 
  stronger, 
  radiating 
  strise 
  on 
  scales 
  extending 
  over 
  entu-e 
  sur- 
  

   face, 
  fewer 
  rays 
  in 
  dorsal, 
  anal, 
  and 
  pectoral, 
  larger 
  eye, 
  longer 
  ventral, 
  

   and 
  lighter 
  coloration. 
  

  

  MONOMITOPUS 
  LONGICEPS 
  Smith 
  and 
  Radcliffe, 
  new 
  species. 
  

   Plate 
  9, 
  fig. 
  2. 
  

  

  Dorsal 
  97; 
  caudal 
  9; 
  anal 
  81; 
  ventrals 
  1; 
  pectorals 
  28. 
  

  

  Head 
  3.94 
  (4.21 
  in 
  total 
  length), 
  long, 
  robust, 
  arched 
  posteriorly, 
  

   cavernous; 
  body 
  short, 
  deep, 
  compressed, 
  greatest 
  depth 
  4.60 
  (4.92 
  

   in 
  total 
  length) 
  ; 
  eye 
  5.43, 
  subelliptical 
  ; 
  snout 
  4, 
  broad, 
  blunt; 
  mouth 
  

   large, 
  slightly 
  obUque; 
  upper 
  jaw 
  overhanging 
  lower; 
  maxillary 
  1.84, 
  

   reachmg 
  beyond 
  vertical 
  from 
  posterior 
  margin 
  of 
  eye 
  for 
  about 
  0.7 
  

   of 
  an 
  eye 
  diameter, 
  posterior 
  end 
  expanded 
  very 
  slightly 
  incised, 
  its 
  

   width 
  about 
  equal 
  to 
  diameter 
  of 
  eye; 
  teeth 
  small, 
  blunt, 
  in 
  villiform 
  

   bands, 
  the 
  patch 
  on 
  vomer 
  y\-shaped; 
  interorbital 
  3.53, 
  very 
  broad, 
  

   probably 
  convex 
  m 
  life; 
  nostrils 
  widely 
  separated; 
  opercle 
  armed 
  

   with 
  a 
  single 
  sharp 
  spine, 
  margin 
  of 
  preopercle 
  weak, 
  irregularly 
  

   crenulate, 
  armed 
  with 
  three 
  weak, 
  spine-like 
  projections; 
  pseudo- 
  

   branchi£e 
  small; 
  gill-rakers 
  5 
  + 
  22, 
  long, 
  slender, 
  the 
  longest 
  slightly 
  

   less 
  than 
  0.7 
  diameter 
  of 
  eye, 
  the 
  outer 
  ones 
  reduced 
  to 
  small 
  knob- 
  

   like 
  protuberances; 
  a 
  ring 
  of 
  10 
  large 
  finger-like 
  pyloric 
  coeca 
  extend- 
  

   ing 
  around 
  the 
  pylorus 
  out 
  onto 
  the 
  neighboring 
  part 
  of 
  gut; 
  scales 
  

   small, 
  cycloid, 
  deciduous, 
  completely 
  covering 
  head 
  and 
  body, 
  8 
  or 
  9 
  

   scales 
  in 
  a 
  series 
  from 
  origin 
  of 
  dorsal 
  to 
  and 
  including 
  lateral 
  line, 
  27 
  

   from 
  origin 
  of 
  anal 
  to 
  lateral 
  line; 
  dorsal 
  and 
  anal 
  with 
  a 
  scaly 
  

   sheath-Hke 
  base; 
  lateral 
  line 
  broad, 
  distinct, 
  disappearing 
  at 
  a 
  point 
  

   more 
  than 
  half 
  head-length 
  from 
  base 
  of 
  caudal. 
  

  

  