﻿NEW 
  PERCOID 
  FISHES 
  I'HOM 
  NEW 
  GUINEA 
  SCHULTZ 
  117 
  

  

  Acanthoperca 
  Castoliuiu, 
  1S78, 
  ami 
  lilandoirskieUa 
  Irediile 
  and 
  Whit- 
  

   ley, 
  1932, 
  as 
  subgenera 
  of 
  Aiiibassh. 
  Priopidichthys 
  Whitley, 
  1935, 
  

   with 
  teeth 
  on 
  the 
  tongut.'. 
  may 
  well 
  he 
  a 
  valid 
  grnus, 
  as 
  none 
  of 
  the 
  

   other 
  irenera 
  seem 
  to 
  have 
  lingual 
  teeth. 
  

  

  Named 
  Xena//>h(issi.s, 
  meaning 
  a 
  strange 
  or 
  different 
  Ambassis. 
  

  

  KEY 
  TO 
  THE 
  GENERA 
  AND 
  SPECIES 
  OF 
  NEW 
  GUINEA 
  

   CENTROPOMIDAE 
  RELATED 
  TO 
  TETRACENTRUM 
  

  

  la. 
  Anal 
  rays 
  IV, 
  f>; 
  dorsal 
  rays 
  IX, 
  10, 
  dorsal 
  tiu 
  loiitiiuious 
  ; 
  preorbital 
  witli 
  2 
  

   serrated 
  ridges; 
  suborbital 
  and 
  postorbitnl 
  ring 
  of 
  bones 
  witb 
  denticula- 
  

   tions 
  ; 
  inner 
  double 
  edge 
  of 
  preoi>ercular 
  bone 
  strongly 
  toothed 
  at 
  angle 
  

   and 
  along 
  its 
  lower 
  edge; 
  outer 
  edge 
  of 
  preoperculum 
  strongly 
  denticulate 
  

   aluug 
  its 
  entire 
  border; 
  least 
  depth 
  of 
  caudal 
  peduncle 
  Ir.i 
  in 
  its 
  lenytii 
  : 
  

   profde 
  concave 
  over 
  orbits 
  ; 
  pelvics 
  inserted 
  under 
  i^)ectoral 
  base; 
  postorbital 
  

   length 
  of 
  head 
  1.1 
  in 
  length 
  of 
  caudal 
  peduncle. 
  

  

  Tetracentruni 
  ' 
  apogonoides 
  (Macleay) 
  

   lb. 
  Anal 
  rays 
  111, 
  ."S 
  lu 
  11 
  (see 
  table 
  1). 
  

   2a. 
  Dorsal 
  fin 
  continuous, 
  no 
  deep 
  notch 
  in 
  front 
  of 
  last 
  spine, 
  membrane 
  be- 
  

   twt^n 
  la.st 
  two 
  spines 
  connected 
  over 
  halfway 
  out 
  last 
  dorsal 
  spine; 
  sec- 
  

   <»nd 
  dorsal 
  spine 
  not 
  reaching 
  anywhere 
  near 
  base 
  of 
  last 
  dorsal 
  spine 
  

   when 
  fin 
  is 
  dtpressed. 
  

   3n. 
  Orbital 
  rim 
  without 
  serrae; 
  profile 
  over 
  orbits 
  convex; 
  inner 
  ridge 
  ot 
  

   preoperculum 
  with 
  1 
  or 
  2 
  serrae 
  at 
  angle; 
  pelvics 
  inserted 
  just 
  behind 
  

   pectoral 
  base; 
  anal 
  origin 
  under 
  next 
  to 
  last 
  dorsal 
  spine; 
  least 
  deptli 
  

   of 
  caudal 
  peduncle 
  1% 
  in 
  its 
  length; 
  postorbital 
  length 
  of 
  head 
  1.3 
  in 
  

   length 
  of 
  caudal 
  peduncle; 
  dorsal 
  rays 
  IX, 
  10; 
  14 
  gill 
  rakers 
  on 
  lower 
  

   half 
  of 
  first 
  gill 
  arch 
  ; 
  pectt)ral 
  with 
  14 
  rays. 
  

  

  Synechopterus 
  caudovittatus 
  Norman 
  ^ 
  

  

  :ib. 
  Orbital 
  rim 
  denticulate; 
  profile 
  over 
  orbits 
  a 
  little 
  concave; 
  inner 
  ridge 
  

  

  of 
  preoperciilinn 
  with 
  lower 
  and 
  posterior 
  sides 
  near 
  angle 
  denticulate; 
  

  

  Itelvic 
  iiLsertion 
  under 
  pectoral 
  fin 
  base; 
  anal 
  origin 
  under 
  base 
  of 
  last 
  

  

  dorsal 
  spine 
  or 
  base 
  of 
  first 
  soft 
  dorsal 
  ray. 
  

  

  .}a. 
  Dor.sal 
  rays 
  VIII, 
  10 
  or 
  11; 
  a 
  blackish 
  band 
  along 
  nudaxis 
  of 
  body 
  

  

  commencing 
  behind 
  head 
  and 
  becoming 
  more 
  intense 
  on 
  caudal 
  

  

  [jeduncle, 
  its 
  width 
  about 
  equal 
  to 
  that 
  of 
  pupil, 
  ending 
  in 
  a 
  dark 
  

  

  blotch 
  at 
  base 
  of 
  caudal 
  fin 
  Xenanibassis 
  honessi, 
  new 
  speci<>s 
  

  

  ■'ih. 
  Dor.sal 
  rays 
  IX, 
  10; 
  midaxis 
  of 
  body 
  with 
  a 
  narrow 
  dark 
  streali 
  on 
  

   caudal 
  region 
  not 
  ending 
  in 
  a 
  large 
  dark 
  lilol( 
  h 
  at 
  base 
  of 
  caudal 
  tin. 
  

  

  Xenanibassis 
  simoni, 
  new 
  specie's 
  

   2h. 
  Dorsal 
  lln 
  dcply 
  notclied, 
  first 
  portion 
  connected 
  at 
  ba.se 
  of 
  first 
  spine 
  of 
  

   second 
  dorsal 
  fin; 
  dorsal 
  rays 
  VII-I, 
  8 
  to 
  14; 
  second 
  dorsal 
  spine 
  long, 
  

   slender, 
  when 
  depressed 
  Its 
  tip 
  reacliing 
  past 
  base 
  of 
  last 
  dorsal 
  spine. 
  

  

  Aiubassis 
  ' 
  Cuvier 
  and 
  Valenciennes 
  

  

  ' 
  Whitlfy, 
  1935, 
  propoHed 
  VcgamhaHsit 
  to 
  replace 
  Tctracentrum, 
  which 
  ho 
  Hnid 
  was 
  pre- 
  

   oi('ii|il.-.| 
  l)y 
  Trtrnrrntron 
  BrainT, 
  18t!.1. 
  but 
  the 
  apt-llinR 
  U 
  not 
  In 
  conflict, 
  acconllnK 
  to 
  

   oplnioiiH 
  147 
  anci 
  \\H 
  of 
  the 
  Intcriuitioiial 
  CotnmlHRlon 
  on 
  Zoological 
  Nomenclature, 
  and 
  bo 
  

   Tctracentrum 
  muHt 
  Htand 
  aH 
  a 
  valid 
  name. 
  

  

  ' 
  Copela. 
  lOa.',. 
  No. 
  2. 
  pi>. 
  01-0:j. 
  flj;. 
  1. 
  

  

  •For 
  a 
  key 
  to 
  the 
  Hpecles 
  of 
  AmhatitiH 
  Hee 
  W'elxT 
  and 
  (!<• 
  Iti-aufort, 
  FIhIh-h 
  of 
  the 
  ludn 
  

   .\ufltrallnn 
  Arrhlpelajco, 
  vol. 
  5, 
  p. 
  398, 
  1029. 
  

  

  