﻿NO. 
  1948. 
  NEW 
  BROTULID 
  AND 
  OARAPID 
  FISHES— 
  RADCLIFFE. 
  151 
  

  

  (4.31 
  ill 
  total 
  length); 
  distance 
  of 
  anal 
  from 
  tip 
  of 
  snout 
  2.42 
  (2.72 
  

   in 
  total 
  length); 
  distance 
  of 
  anal 
  from 
  lower 
  pectoral 
  base 
  1.16 
  in 
  

   head; 
  ventrals 
  slender, 
  close 
  togeth'er, 
  each 
  consisting 
  of 
  2 
  closely 
  

   bound 
  rays, 
  the 
  inner 
  1.67 
  in 
  head, 
  ventral 
  base 
  slightly 
  behind 
  tip 
  

   of 
  humeral 
  symphysis, 
  at 
  a 
  distance 
  from 
  anal 
  somewhat 
  greater 
  

   than 
  length 
  of 
  head; 
  pectoral 
  1.56. 
  

  

  Color 
  in 
  alcohol 
  : 
  Ground 
  color 
  burnt 
  umber, 
  darkest 
  on 
  back 
  and 
  

   head 
  ; 
  fuis 
  and 
  peritoneum 
  dark 
  seal 
  brown. 
  

  

  Type. 
  — 
  Cat. 
  No. 
  74156, 
  U.S.N.M., 
  25 
  cm. 
  in 
  length, 
  taken 
  with 
  a 
  

   beam 
  trawl 
  at 
  station 
  5410 
  (lat. 
  10° 
  28' 
  45'' 
  N.; 
  long. 
  124° 
  05' 
  30" 
  

   E.), 
  between 
  Cebu 
  and 
  Leyte, 
  at 
  a 
  depth 
  of 
  385 
  fathoms, 
  on 
  a 
  bottom 
  

   of 
  green 
  mud. 
  

  

  This 
  species 
  differs 
  from 
  31. 
  nigripinnis 
  in 
  the 
  more 
  elongate 
  form 
  

   of 
  head 
  and 
  body, 
  smaller 
  eye, 
  smaller 
  scales, 
  and 
  darker 
  coloration. 
  

  

  Genus 
  MONOMEROPUS 
  Garman. 
  

  

  Monomeropus 
  Garman, 
  Deep 
  Sea 
  Fishes, 
  1899, 
  p. 
  158, 
  malispinosus. 
  (No 
  generic 
  

   description.) 
  

  

  Brotulids 
  similar 
  in 
  structure 
  and 
  appearance 
  to 
  Monomitopus 
  but 
  

   distinguished 
  by 
  the 
  more 
  cavernous 
  structure 
  of 
  the 
  head 
  and 
  weaker 
  

   armature 
  of 
  opercle 
  and 
  preopercle; 
  by 
  the 
  more 
  rudimentary 
  charac- 
  

   ter 
  of 
  the 
  lateral 
  line 
  which 
  ends 
  above 
  or 
  sKghtly 
  behind 
  origm 
  of 
  

   anal; 
  by 
  the 
  smaller 
  number 
  and 
  the 
  more 
  rudimentary 
  character 
  of 
  

   the 
  pyloric 
  cceca; 
  and 
  by 
  the 
  smaller 
  ventral 
  filaments. 
  

  

  MONOMEROPUS 
  GARMANI 
  Smith 
  and 
  Radcliffe, 
  new 
  species. 
  

   Plate 
  10, 
  fig. 
  1. 
  

  

  Dorsal 
  96; 
  caudal 
  8; 
  anal 
  80; 
  ventrals 
  1; 
  pectorals 
  31. 
  

  

  Head 
  4.91 
  (5.20 
  in 
  total 
  length), 
  short, 
  deep, 
  slightly 
  depressed 
  

   anteriorly, 
  strongly 
  arched 
  posteriorly; 
  body 
  compressed, 
  greatest 
  

   depth 
  5.52 
  (5.85 
  in 
  total 
  length); 
  eye 
  5.30, 
  small, 
  subcircular; 
  snout 
  

   4.08, 
  short, 
  as 
  broad 
  as 
  long, 
  very 
  slightly 
  overhanging 
  mouth; 
  

   mouth 
  large, 
  oblique, 
  upper 
  jaw 
  overhanging 
  lower; 
  maxillary 
  1.77, 
  

   reaching 
  beyond 
  vertical 
  from 
  posterior 
  margin 
  of 
  eye 
  for 
  about 
  0.7 
  

   an 
  eye 
  diameter, 
  posterior 
  end 
  expanded, 
  its 
  breadth 
  equal 
  to 
  diame- 
  

   ter 
  of 
  eye, 
  upper 
  margin 
  slipping 
  under 
  suborbital 
  ; 
  teeth 
  small, 
  villi- 
  

   form; 
  head 
  of 
  vomer 
  prominent, 
  knob-like, 
  covered 
  with 
  teeth, 
  a 
  

   narrow 
  short 
  series 
  on 
  each 
  side 
  extending 
  backward 
  nearly 
  to 
  pala- 
  

   tines; 
  interorbital 
  3.21, 
  broad, 
  convex; 
  nostrils 
  widely 
  separated; 
  

   opercle 
  armed 
  with 
  a 
  single 
  slender 
  spine 
  ; 
  angle 
  of 
  preopercle 
  with 
  a 
  

   double 
  incision, 
  and 
  traces 
  of 
  three 
  flat, 
  weak 
  points, 
  weaker 
  than 
  in 
  

   typical 
  examples 
  of 
  Monomitopus; 
  pseudobranchiae 
  consisting 
  of 
  2 
  

   small 
  filaments, 
  gill-rakers 
  5+22, 
  long, 
  slender, 
  longest 
  0.65 
  diameter 
  

   of 
  eye; 
  a 
  ring 
  of 
  5 
  small, 
  rudimentary 
  coeca 
  extendmg 
  around 
  the 
  

   pylorus; 
  scales 
  small, 
  cycloid, 
  deciduous, 
  covering 
  head 
  and 
  body, 
  

  

  