﻿the 
  Cirrhitiform 
  Percoids. 
  261 
  

  

  pophyses 
  from 
  the 
  fourth 
  or 
  fifth 
  ; 
  1 
  or 
  2 
  ribs 
  sessile. 
  In 
  

   other 
  characters 
  similar 
  to 
  the 
  Cirrhitidae. 
  

   Two 
  genera 
  : 
  Chironemus 
  and 
  Threpterius. 
  

  

  3. 
  Haplodactylidse. 
  

  

  Dorsal 
  XV-XVII 
  18-21. 
  Anal 
  III 
  6-8. 
  Mouth 
  trans- 
  

   verse, 
  subterminal, 
  not 
  or 
  scarcely 
  protractile; 
  jaws 
  with 
  

   bands 
  of 
  lanceolate 
  or 
  tricuspid 
  incisors 
  ; 
  teeth 
  on 
  the 
  vomer. 
  

   Jaws, 
  head 
  skeleton, 
  &c. 
  as 
  in 
  Chironemus, 
  except 
  that 
  the 
  

   frontals 
  have 
  no 
  definite 
  supraorbital 
  flanges. 
  Vertebra? 
  

   35 
  (16 
  + 
  19); 
  all 
  the 
  prsecaudals 
  with 
  parapophyses; 
  no 
  

   sessile 
  ribs. 
  

  

  A 
  single 
  genus, 
  Haphdactylus, 
  scarcely 
  differing 
  from 
  

   Chironemus, 
  except 
  in 
  the 
  mouth 
  and 
  dentition, 
  and 
  the 
  

   greater 
  development 
  of 
  the 
  parapophyses. 
  

  

  4. 
  Chilodactylidse. 
  

  

  Dorsal 
  XVI-XIX 
  23-33. 
  Anal 
  III 
  7-19, 
  considerably 
  

   shorter 
  than 
  the 
  soft 
  dorsal. 
  Mouth, 
  jaws, 
  and 
  dentition 
  as 
  

   in 
  the 
  Cirrhitidae, 
  except 
  that 
  the 
  maxillary 
  ramus 
  has 
  a 
  

   strong 
  posterior 
  expansion 
  just 
  below 
  its 
  palatine 
  articulation 
  

   and 
  there 
  are 
  no 
  teeth 
  on 
  the 
  palate. 
  Skull 
  as 
  in 
  the 
  

   Cirrhitidae 
  ; 
  subocular 
  shelf 
  well 
  developed. 
  Vertebrae 
  

   35 
  (14 
  + 
  21) 
  ; 
  in 
  the 
  prsecaudal 
  region 
  expanded 
  laminae 
  at 
  

   the 
  bases 
  of 
  the 
  neural 
  spines 
  ; 
  all 
  the 
  praecaudals 
  with 
  para- 
  

   pophyses 
  ; 
  no 
  sessile 
  ribs. 
  

  

  Chiludactylus 
  and 
  JSemadactylus 
  differ 
  from 
  the 
  Cirrhitidae 
  

   only 
  in 
  the 
  increased 
  number 
  of 
  vertebrae 
  and 
  fin-rays, 
  the 
  

   absence 
  of 
  vomerine 
  teeth, 
  the 
  form 
  of 
  the 
  maxillary, 
  and 
  the 
  

   structure 
  of 
  the 
  prsecaudal 
  vertebrae. 
  

  

  5. 
  Latrididae. 
  

  

  Dorsal 
  XVII-XXIII 
  24-39. 
  Anal 
  III 
  18-32, 
  nearly 
  as 
  

   long 
  as 
  soft 
  dorsal. 
  Simple 
  pectoral 
  rays 
  feeble, 
  not 
  pro- 
  

   duced. 
  No 
  subocular 
  shelf. 
  Vertebrae 
  35 
  (14 
  + 
  21). 
  

  

  Latris 
  and 
  Mendosoma, 
  in 
  other 
  characters 
  similar 
  to 
  the 
  

   Chilodactylidae. 
  

  

  From 
  the 
  above 
  it 
  will 
  be 
  seen 
  that 
  I 
  am 
  not 
  in 
  agreement 
  

  

  with 
  the 
  views 
  of 
  Boulenger 
  *, 
  who, 
  in 
  1896, 
  redescribed 
  

  

  Threpterius 
  maculosus, 
  Richards., 
  and 
  offered 
  some 
  remarks 
  on 
  

  

  the 
  systematic 
  position 
  of 
  the 
  genus 
  Threpterius 
  and 
  others 
  

  

  * 
  Ann. 
  & 
  Mag. 
  Nat. 
  Hist, 
  (6) 
  xviii. 
  p. 
  398. 
  

  

  