﻿[15] 
  

  

  CATALOGUE 
  OF 
  THE 
  FISHES 
  OF 
  NORTH 
  AMERICA. 
  803 
  

  

  125c 
  Amiurus 
  nebulosus 
  marmoratus} 
  Holbrook. 
  Vs. 
  (97) 
  

  

  126. 
  Amiurus 
  vulgaris 
  Thompson. 
  Vn. 
  (99) 
  

  

  127. 
  Amiurus 
  natalis 
  Lo 
  Sueur. 
  V. 
  (100) 
  

   127b. 
  Amiurus 
  natalis 
  lividus 
  Rafinesque. 
  V. 
  

   127c. 
  Amiurus 
  natalis 
  bolli 
  Cope. 
  Vsw. 
  (1006.) 
  

  

  128. 
  Amiurus 
  erebennus 
  2 
  Jordan. 
  Vso. 
  (101) 
  

  

  129. 
  Amiurus 
  albidus 
  3 
  Le 
  Sueur. 
  Ve, 
  (102,103) 
  

  

  130. 
  Amiurus 
  lupus 
  Girard. 
  Vsw. 
  (104) 
  

  

  131. 
  Amiurus 
  niveiventris 
  Cope. 
  Vse. 
  (105) 
  

  

  132. 
  Amiurus 
  nigricans 
  Le 
  Sueur. 
  Vw. 
  (106) 
  

  

  133. 
  Amiurus 
  ponderosus 
  4 
  Beau. 
  Vw. 
  (107) 
  

  

  54.— 
  ICTALURUS 
  5 
  Rafinesque. 
  (56) 
  

   13 
  4. 
  Ictalurus 
  punctatus 
  Rafinesque. 
  V. 
  (108) 
  

  

  135. 
  Ictalurus 
  furcatus 
  Cuv. 
  & 
  Val. 
  Vsw. 
  (109) 
  

  

  55. 
  -GALEICHTHYS 
  " 
  Cuv. 
  & 
  Val. 
  (57) 
  

   § 
  Arius 
  Cuv. 
  & 
  Val. 
  

  

  136. 
  Galeichthys 
  guatemalensis 
  7 
  Giinther. 
  P. 
  

  

  137. 
  Galeichthys 
  seemanni 
  8 
  Giinther. 
  P. 
  

  

  1 
  Amiurus 
  marmoratus 
  represents 
  apparently 
  a 
  color 
  variety 
  only 
  of 
  Amiurus 
  ■nebulo- 
  

   sus. 
  It 
  inhabits 
  grassy 
  waters 
  southward. 
  

  

  2 
  Professor 
  Cope 
  describes 
  (Proc. 
  Ac. 
  Nat. 
  Sci., 
  Phila., 
  1883, 
  133) 
  a 
  catfish 
  from 
  Bats- 
  

   toe 
  River, 
  New 
  Jersey, 
  as 
  a 
  new 
  species, 
  under 
  the 
  name 
  of 
  Amiurus 
  prosthistius. 
  Ex- 
  

   cept 
  that 
  the 
  caudal 
  fin 
  is 
  said 
  to 
  bo 
  rounded 
  rather 
  than 
  truncate, 
  this 
  species 
  agrees 
  

   with 
  A. 
  erebennus, 
  with 
  which 
  species 
  wo 
  think 
  that 
  it 
  will 
  prove 
  identical. 
  Great- 
  

   est 
  width 
  of 
  head 
  equal 
  to 
  depth 
  of 
  body 
  ; 
  eye 
  small, 
  5 
  in 
  intcrorbital 
  width 
  ; 
  dorsal 
  

   spine 
  inserted 
  much 
  nearer 
  tip 
  of 
  snout 
  than 
  adipose 
  fin; 
  pectoral 
  spines 
  a 
  little 
  

   larger 
  than 
  dorsal 
  spine; 
  maxillary 
  barbel 
  reaching 
  middle 
  of 
  pectoral 
  spine; 
  hu- 
  

   meral 
  process 
  extending 
  a 
  little 
  farther; 
  black, 
  whitish 
  below 
  ; 
  tins 
  black 
  ; 
  pectoral 
  

   and 
  ventral 
  pale 
  at 
  base 
  ; 
  head, 
  3$ 
  ; 
  depth, 
  4£. 
  D. 
  I. 
  G. 
  A. 
  24 
  to 
  27. 
  Batstoo 
  River, 
  

   New 
  Jersey. 
  (Cope.) 
  

  

  3 
  Amiurus 
  lophius 
  Cope 
  seems 
  to 
  bo 
  the 
  adult 
  form 
  of 
  A. 
  albidits. 
  

  

  4 
  Amiurus 
  ponderosus 
  is 
  perhaps 
  the 
  adult 
  form 
  of 
  J. 
  nigricans. 
  The 
  type 
  of 
  the 
  for- 
  

   mer 
  species 
  has 
  35 
  anal 
  rays. 
  We 
  have 
  counted 
  25,27, 
  28, 
  and 
  32 
  anal 
  rays 
  in 
  four 
  

   individuals 
  of 
  A. 
  nigricans. 
  

  

  6 
  It 
  is 
  probably 
  better, 
  if 
  the 
  genus 
  Amiurus 
  is 
  to 
  be 
  retained 
  as 
  distinct 
  from 
  Icta- 
  

   lurus, 
  to 
  refer 
  to 
  it 
  all 
  the 
  transitional 
  species 
  having 
  the 
  tail 
  forked 
  and 
  the 
  bony 
  

   bridge, 
  from 
  occiput 
  to 
  dorsal 
  not 
  quite 
  continuous. 
  It 
  is 
  true 
  that 
  this 
  latter 
  char- 
  

   acter 
  is 
  largely 
  one 
  of 
  degree, 
  but 
  still 
  there 
  is 
  a 
  positive 
  difference 
  between 
  I. 
  punc- 
  

   tatus 
  and 
  furcatus 
  and 
  the 
  fork-tailed 
  Amiuri. 
  

  

  6 
  Galeichthys 
  Cuvicr 
  & 
  Valenciennes. 
  

  

  Arius 
  (C. 
  & 
  V.); 
  Ilcxancmatichllnjs, 
  Guirilinga, 
  Bemiarius, 
  Ccphalocassis, 
  Nctuma, 
  and 
  

   Fseudarius 
  Bleekev 
  ; 
  Notarius, 
  Ariopsis, 
  and 
  Lepiarius 
  GUI 
  ; 
  Sciadarius 
  and 
  Bagropsis 
  

   Kner 
  ; 
  Cathorops 
  Jor. 
  & 
  Gilb.). 
  

  

  (Cuvier 
  & 
  Valencienes, 
  Hist. 
  Nat. 
  Poiss., 
  XV., 
  29, 
  1840; 
  type 
  Galeichthys 
  feliceps 
  

   C. 
  & 
  V.). 
  

  

  The 
  genus 
  Arius, 
  distinguished 
  from 
  Galeichthys 
  by 
  having 
  the 
  nuchal 
  shield 
  

   ("occipital 
  process 
  ") 
  not 
  covered 
  by 
  thick 
  skin, 
  cannot 
  well 
  be 
  separated 
  from 
  Arius, 
  

   as 
  in 
  several 
  species 
  {dasycephalus, 
  brandti 
  &c.) 
  this 
  character 
  is 
  simply 
  sexual. 
  For 
  a 
  

   full 
  account 
  of 
  the 
  species 
  of 
  this 
  genus, 
  found 
  on 
  the 
  west 
  coast 
  of 
  America, 
  seo 
  

   Jordan 
  & 
  Gilbert, 
  Bull. 
  U. 
  S. 
  Fish 
  Comrn., 
  1882, 
  34. 
  

  

  7 
  Arius 
  guatemalensis 
  Giinther, 
  V. 
  18C4, 
  145; 
  Jordan 
  & 
  Gilbert, 
  Bull. 
  'J. 
  S. 
  Fish 
  

   Comm., 
  1882,48; 
  Mazatlau 
  to 
  Panama. 
  

  

  8 
  Arms 
  seemanni 
  Giinther, 
  V. 
  147 
  ; 
  Arius 
  assimilis 
  Jordan 
  & 
  Gilbert, 
  Bull. 
  U. 
  S. 
  Fish 
  

   Cornm,,, 
  1882. 
  47 
  (not 
  A, 
  assimilis 
  Giinther); 
  Mazatlau 
  to 
  Panama. 
  

  

  