﻿no. 
  1948. 
  NEW 
  BROTULID 
  AND 
  CARAPID 
  FISHES— 
  RADCLIFFE. 
  147 
  

  

  HOMOSTOLUS 
  ACER 
  Smith 
  and 
  Radcliffe, 
  new 
  species. 
  

   Plate 
  8, 
  fig. 
  3. 
  

  

  Dorsal 
  about 
  93; 
  caudal 
  10; 
  anal 
  about 
  70; 
  ventrals 
  1; 
  pectorals 
  

   21. 
  

  

  Head 
  4.50 
  (4.75 
  in 
  total 
  length), 
  long, 
  pointed, 
  low, 
  compressed, 
  

   cavernous, 
  the 
  bony 
  crests 
  much 
  less 
  prominent 
  than 
  in 
  species 
  of 
  

   Glyptophidium, 
  subquadrangular 
  in 
  transverse 
  section; 
  body 
  com- 
  

   pressed, 
  relatively 
  short, 
  greatest 
  depth 
  5.54 
  (5.90 
  in 
  total 
  length); 
  

   eye 
  3.41, 
  elUptical-oval; 
  snout 
  3.41, 
  as 
  long 
  as 
  eye, 
  low, 
  pointed, 
  

   slightly 
  overhanging 
  maxillary; 
  mouth 
  long, 
  narrow, 
  obUque, 
  upper 
  

   jaw 
  overlapping 
  lower 
  except 
  at 
  tip, 
  where 
  a 
  knob 
  at 
  tip 
  of 
  mandi- 
  

   bular 
  symphysis 
  projects 
  slightly; 
  maxillary 
  1.64, 
  extending 
  about 
  

   0.5 
  an 
  eye 
  diameter 
  beyond 
  vertical 
  from 
  posterior 
  margin 
  of 
  eye; 
  

   narrow 
  bands 
  of 
  minute 
  villiform 
  teeth 
  on 
  jaws, 
  vomer, 
  palatines 
  and 
  

   tongue, 
  5 
  small 
  patches 
  of 
  teeth 
  on 
  roof 
  of 
  mouth 
  posteriorly 
  as 
  in 
  

   Neohythites; 
  interorbital 
  3.72, 
  flattened, 
  slightly 
  broader 
  than 
  eye; 
  

   nostrils 
  small, 
  the 
  posterior 
  close 
  to 
  eye; 
  opercular 
  spine 
  slender, 
  

   sharp; 
  2 
  small 
  spines 
  at 
  angle 
  of 
  preopercle; 
  pseudobranchiae 
  small; 
  

   gill-filaments 
  short; 
  gill-rakers 
  7 
  + 
  20, 
  long 
  and 
  slender, 
  the 
  longest 
  

   about 
  0.7 
  diameter 
  of 
  eye; 
  about 
  10 
  long, 
  finger-like 
  pyloric 
  coeca 
  

   arranged 
  as 
  in 
  Neohythites; 
  scales 
  small, 
  cycloid, 
  NeohytJiites-like, 
  9 
  

   in 
  a 
  series 
  from 
  origin 
  of 
  dorsal 
  to 
  lateral 
  line, 
  about 
  18 
  from 
  origin 
  

   of 
  anal 
  to 
  lateral 
  line; 
  lateral 
  line 
  broad 
  and 
  distinct, 
  disappearing 
  

   within 
  0.5 
  a 
  head 
  length 
  from 
  base 
  of 
  caudal. 
  

  

  Dorsal 
  and 
  anal 
  continuous 
  with 
  the 
  caudal; 
  origin 
  of 
  dorsal 
  from 
  

   tip 
  of 
  snout 
  3.76 
  (4.15 
  in 
  total 
  length), 
  its 
  rays 
  somewhat 
  longer 
  than 
  

   those 
  of 
  anal; 
  caudal 
  narrow, 
  pointed; 
  origin 
  of 
  anal 
  from 
  tip 
  of 
  

   snout 
  2.52 
  (2.67 
  in 
  total 
  length); 
  ventrals 
  elongate, 
  1.55 
  times 
  length 
  

   of 
  head, 
  each 
  composed 
  of 
  2 
  closely 
  bound 
  rays, 
  the 
  inner 
  the 
  longest, 
  

   bases 
  rather 
  widely 
  separated, 
  situated 
  behind 
  tip 
  of 
  humeral 
  sym- 
  

   physis; 
  pectoral 
  1.64, 
  narrow. 
  

  

  Color 
  in 
  alcohol: 
  Dusky 
  ocher 
  yellow, 
  darkest 
  dorsally, 
  becoming 
  

   dusky 
  cream-buff 
  on 
  belly 
  and 
  sides 
  and 
  ventral 
  surface 
  of 
  head; 
  

   opercular 
  region 
  silvery; 
  fins 
  dusky, 
  dorsal 
  and 
  anal 
  margined 
  with 
  

   blackish, 
  darkest 
  anteriorly; 
  peritoneum 
  blackish 
  brown. 
  

  

  Type.— 
  C&t. 
  No. 
  74132, 
  U.S.N.M., 
  19.5 
  cm. 
  in 
  length, 
  taken 
  with 
  a 
  

   beam 
  trawl 
  at 
  station 
  5508 
  (lat. 
  8° 
  17' 
  24" 
  N.; 
  long. 
  124° 
  11' 
  42" 
  

   E.), 
  in 
  Iligan 
  Bay, 
  Alindanao, 
  at 
  a 
  depth 
  of 
  270 
  fathoms, 
  on 
  a 
  bottom 
  

   of 
  green 
  mud 
  and 
  fine 
  sand. 
  

  

  This 
  species 
  is 
  found 
  in 
  the 
  same 
  general 
  regions 
  as 
  our 
  examples 
  

   of 
  Glyptophidium. 
  

  

  