﻿NO. 
  1948. 
  NEW 
  BROTULID 
  AND 
  CARAPID 
  FISHES— 
  RADCLIFFE. 
  163 
  

  

  Type.— 
  Cat. 
  No. 
  74145, 
  U.S.N.M., 
  21 
  cm. 
  in 
  length, 
  taken 
  with 
  a 
  

   beam 
  trawl 
  at 
  station 
  5444 
  (lat. 
  12° 
  43' 
  51'' 
  N.; 
  long. 
  124° 
  58' 
  50" 
  E.), 
  

   in 
  the 
  Pacific 
  Ocean 
  north 
  of 
  Samar, 
  at 
  a 
  depth 
  of 
  308 
  fathoms, 
  on 
  a 
  

   bottom 
  of 
  green 
  mud. 
  

  

  The 
  collection 
  contains 
  2 
  other 
  examples, 
  1 
  from 
  station 
  5298, 
  

   Batangas 
  Bay, 
  Luzon, 
  at 
  a 
  depth 
  of 
  140 
  fathoms, 
  and 
  1 
  from 
  station 
  

   5331, 
  west 
  coast 
  of 
  Luzon, 
  at 
  a 
  depth 
  of 
  178 
  fathoms. 
  

  

  This 
  species 
  is 
  distinguished 
  from 
  the 
  other 
  Philippine 
  forms 
  in 
  

   having 
  the 
  ventrals 
  bifid. 
  It 
  appears 
  to 
  be 
  more 
  closely 
  related 
  to 
  

   G. 
  macropus 
  of 
  Alcock, 
  from 
  which 
  it 
  is 
  distinguished 
  by 
  the 
  much 
  

   shorter 
  ventral 
  filaments, 
  these 
  being 
  only 
  about 
  0.5 
  as 
  long 
  as 
  head 
  

   (in 
  macropus, 
  Alcock 
  states 
  that 
  then- 
  length 
  is 
  an 
  eye 
  diameter 
  

   longer 
  than 
  head, 
  and 
  Brauer 
  gives 
  them 
  as 
  1.5 
  to 
  2 
  times 
  the 
  length 
  

   of 
  the 
  head), 
  and 
  by 
  the 
  larger 
  number 
  of 
  pseudobranchial 
  filaments, 
  

   12 
  to 
  14 
  (5 
  to 
  8 
  in 
  macropus). 
  The 
  snout 
  is 
  longer 
  and 
  the 
  inter- 
  

   orbital 
  narrower 
  than 
  in 
  Brauer's 
  examples 
  of 
  macropus. 
  

  

  Genus 
  LAMPROGRAMMUS 
  Alcock. 
  

  

  LAMPROGRAMMUS 
  MACROPTERUS 
  Smith 
  and 
  Radcliffe, 
  new 
  species. 
  

   Plate 
  13, 
  fig. 
  1. 
  

  

  Dorsal, 
  120; 
  anal, 
  103; 
  caudal, 
  9; 
  pectoral, 
  21. 
  

  

  Head 
  4.77 
  (5.05 
  in 
  total 
  length), 
  compressed, 
  nearly 
  as 
  deep 
  as 
  

   long, 
  covered 
  by 
  thin 
  scales 
  and 
  by 
  mucous 
  channels 
  under 
  the 
  skin, 
  

   the 
  scales 
  more 
  persistent 
  than 
  in 
  niger; 
  body 
  deep, 
  much 
  com- 
  

   pressed, 
  greatest 
  depth 
  5 
  (5.28 
  in 
  total 
  length); 
  eye 
  7.30 
  in 
  head, 
  

   2.03 
  in 
  snout, 
  2.10 
  in 
  interorbital, 
  lateral, 
  subcircular, 
  orbital 
  bones 
  

   less 
  prominent 
  than 
  in 
  niger; 
  snout 
  3.60, 
  broad, 
  blunt, 
  depressed, 
  

   not 
  projecting 
  beyond 
  mouth; 
  mouth 
  large, 
  oblique, 
  lower 
  jaw 
  in- 
  

   cluded; 
  maxillary 
  1.86, 
  longer 
  than 
  in 
  niger, 
  reaching 
  nearly 
  an 
  eye- 
  

   diameter 
  beyond 
  vertical 
  from 
  posterior 
  margin 
  of 
  eye, 
  its 
  upper 
  

   and 
  hinder 
  edges 
  concave, 
  its 
  greatest 
  breadth 
  1.35 
  times 
  diameter 
  

   of 
  eye; 
  bands 
  of 
  villiform 
  teeth 
  on 
  jaws, 
  vomer, 
  and 
  palatines, 
  those 
  

   on 
  intermaxillary 
  broad, 
  those 
  on 
  mandible 
  somewhat 
  narrower, 
  

   especially 
  anteriorly, 
  but 
  broader 
  than 
  in 
  niger; 
  vomerine 
  patch 
  

   /\-shaped, 
  broader 
  than 
  in 
  niger, 
  especially 
  at 
  the 
  head 
  of 
  the 
  vomer; 
  

   interorbital 
  3.49, 
  convex, 
  narrower 
  than 
  in 
  other 
  forms; 
  nareal 
  aper- 
  

   tures 
  small, 
  close 
  together; 
  opercle 
  armed 
  Avith 
  a 
  thin, 
  flat 
  spine, 
  all 
  

   except 
  the 
  tip 
  concealed 
  by 
  skin; 
  preopercle 
  with 
  a 
  slight 
  emargina- 
  

   tion 
  near 
  the 
  angle 
  as 
  in 
  niger; 
  no 
  pseudobranchiae; 
  gill-filaments 
  

   short; 
  gill-rakers 
  3 
  + 
  15, 
  well 
  developed, 
  flattened, 
  longest 
  nearly 
  

   equal 
  to 
  diameter 
  of 
  eye; 
  2 
  short, 
  stout 
  rudiments 
  of 
  pyloric 
  coeca; 
  

   scales 
  small, 
  cycloid, 
  without 
  radiating 
  striae 
  (differing 
  in 
  this 
  respect 
  

   from 
  niger), 
  covering 
  head 
  and 
  body 
  and 
  bases 
  of 
  dorsal, 
  anal, 
  and 
  

   pectorals; 
  lateral 
  line 
  inconspicuous, 
  not 
  as 
  wide 
  as 
  eye, 
  the 
  inner 
  

  

  