﻿[141] 
  CATALOGUE 
  OF 
  THE 
  FISHES 
  OF 
  NORTH 
  AMERICA. 
  929 
  

  

  1671b. 
  Tetrodon 
  testudineus 
  annulatus 
  1 
  Jenyne. 
  P. 
  

  

  1672. 
  Tetrodon 
  spengleri 
  Bloch. 
  W. 
  (1331) 
  

  

  1673. 
  Tetrodon 
  nephelus 
  2 
  Goode 
  & 
  Bean. 
  S. 
  W. 
  (1332 
  6.) 
  

  

  1674. 
  Tetrodon 
  turgidus 
  Mitchill. 
  N. 
  (1332) 
  

  

  1675. 
  Tetrodon 
  trichocephalus 
  Cope. 
  Ace. 
  (1333). 
  

  

  583— 
  PSILONOTUS 
  3 
  Swainson. 
  

  

  1676. 
  Psilonotus 
  punctatissimus 
  Gunther. 
  P. 
  

  

  Family 
  CLVL— 
  DIODONTID^E. 
  

   584.— 
  TRICHODIODON 
  Bleeker. 
  (482) 
  

  

  1677. 
  Trichodiodon 
  pilosus 
  Mitchill. 
  O. 
  (1334) 
  

  

  585.— 
  DIODON 
  Linnams. 
  (483) 
  

  

  1678. 
  Diodon 
  hystrix 
  Linnaeus. 
  W. 
  P. 
  (1335) 
  

  

  1679. 
  Diodon 
  liturosus 
  Shaw. 
  W.P. 
  (1136) 
  

  

  586.— 
  CHILOMYCTERUS 
  (Bibron) 
  Kaup. 
  (484) 
  

  

  1680. 
  Chilomycterus 
  geometricus 
  Mitchill. 
  N. 
  S. 
  (1337) 
  

  

  1681. 
  Chilomycterus 
  fuliginosus 
  DeKay. 
  N. 
  (1337 
  6.) 
  

  

  1682. 
  Chilomycterus 
  reticulatus 
  Linnaeus. 
  W. 
  (1337 
  c.) 
  

  

  Family 
  CLVIL— 
  ORTHAGOMSCLD^E. 
  (130) 
  

   587.— 
  MOLA 
  4 
  Cuvier. 
  (485,486) 
  

   1683. 
  Mola 
  mola 
  Linnaeus. 
  N. 
  S. 
  W. 
  O.C.Eu.P. 
  (1338,1339) 
  

  

  1 
  Tetrodon 
  annulatus 
  Jenyns, 
  Zool. 
  Beagle, 
  1842, 
  153= 
  Tetrodon 
  heraldi 
  Gunther, 
  VIII, 
  

   283. 
  Gulf 
  of 
  California 
  to 
  Peru. 
  This 
  species 
  is 
  little, 
  if 
  at 
  all, 
  different 
  from 
  T. 
  tes- 
  

   tudineus. 
  

  

  * 
  Tetrodon 
  nephelus 
  is 
  extremely 
  variable 
  in 
  regard 
  to 
  its 
  spinous 
  armature. 
  Specimens 
  

   from 
  Key 
  West 
  show 
  all 
  gradations 
  from 
  entire 
  smoothness 
  above 
  and 
  below 
  to 
  the 
  

   condition 
  described 
  in 
  the 
  text 
  (page 
  966). 
  Older 
  specimens 
  are 
  generally 
  less 
  prickly 
  

   than 
  young 
  ones. 
  

  

  3 
  Psilonotus 
  Swainson. 
  

  

  (Anosmius 
  Peters 
  ; 
  Tropidichthys 
  and 
  Canthogaster 
  Bleeker 
  ; 
  Anchisomus 
  Richardson.) 
  

  

  (Swainson, 
  Nat. 
  Hist. 
  Classn. 
  Anim., 
  II, 
  1839, 
  328 
  ; 
  type 
  Tetrodon 
  rostratus 
  Bloch.) 
  

  

  This 
  genus 
  differs 
  externally 
  from 
  Tetrodon 
  in 
  having 
  the 
  nostrils 
  obsolete, 
  and 
  the 
  

   back 
  compressed 
  to 
  a 
  keel. 
  The 
  skeleton 
  differs 
  so 
  widely 
  from 
  that 
  of 
  Tetrodon 
  that 
  

   Dr. 
  Gill 
  (Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1884,422) 
  has 
  proposed 
  to 
  regard 
  it 
  as 
  forming 
  a 
  dis- 
  

   tinct 
  family, 
  Psilonotidce. 
  Species 
  rather 
  numerous 
  in 
  the 
  tropics. 
  (^PiXcS, 
  bare; 
  

   vobroi, 
  back.) 
  

  

  Psilonotus 
  punctatissimus 
  Giinther. 
  Tetrodon 
  punctatissimus 
  Gunther, 
  VIII, 
  302= 
  

   Tetrodon 
  oxyrhynchus 
  Lockington, 
  Proc. 
  Ac. 
  Nat. 
  Sci. 
  Phila., 
  1881, 
  116. 
  Gulf 
  of 
  Cali- 
  

   fornia 
  to 
  Panama. 
  

  

  4 
  The 
  generic 
  name 
  Mola 
  first 
  appears 
  in 
  Cuvier, 
  Tableau 
  Elementaire, 
  1798, 
  p. 
  423, 
  

   thus 
  having 
  three 
  years 
  priority 
  over 
  Orthagoriscus 
  (1801). 
  

  

  The 
  recent 
  researches 
  of 
  Mr. 
  John 
  A. 
  Ryder 
  render 
  it 
  very 
  probable 
  that 
  the 
  small 
  

   fishes 
  known 
  as 
  Molacanthus 
  are, 
  after 
  all, 
  young 
  forms 
  of 
  Mola. 
  I 
  therefore 
  omit 
  

   Molacanthus 
  nummularis. 
  

  

  Ranzania 
  truncata 
  (No. 
  1139 
  6) 
  should 
  not 
  be 
  included 
  in 
  the 
  present 
  list, 
  as 
  it 
  has 
  

   not 
  been 
  taken 
  nearer 
  our 
  coast 
  than 
  the 
  Bermuda 
  Islands. 
  

   S. 
  Mis. 
  70 
  59 
  

  

  