﻿[IT] 
  

  

  CATALOGUE 
  OF 
  THE 
  FISHES 
  OF 
  NORTH 
  AMERICA. 
  805 
  

  

  148 
  d. 
  Ictiobus 
  velifer 
  difformis 
  Cope. 
  Vw. 
  (121) 
  

  

  149. 
  Ictiobus 
  cyprinua 
  ' 
  Le 
  Sueur. 
  Ve. 
  

  

  58— 
  CYCLEPTUS 
  Rafinesquo. 
  (G2) 
  

  

  150. 
  Cycleptus 
  elongatus 
  Le 
  Sueur. 
  Vw. 
  (122) 
  

  

  59.— 
  PANTOSTEUS 
  Cope. 
  (03) 
  

  

  151. 
  Pantosteus 
  plebeius 
  2 
  Baird 
  & 
  Girard. 
  R. 
  (123, 
  124, 
  125) 
  

  

  152. 
  Pautosteusgenerosus 
  3 
  Girard. 
  R. 
  (120,127) 
  

  

  153. 
  Pantosteus 
  guzmaniensis 
  4 
  Girard. 
  R. 
  (1'28) 
  

  

  60.— 
  CATOSTOMUS 
  Le 
  Sueur. 
  (04) 
  

  

  154. 
  Catostomus 
  araeopus 
  Jordan. 
  T. 
  (134) 
  

  

  155. 
  Catostomus 
  clarki 
  5 
  Baird 
  & 
  Girard. 
  R. 
  (144) 
  

  

  156. 
  Catostomus 
  discobolus 
  Cope. 
  R. 
  (129) 
  

  

  157. 
  Catostomus 
  latipinnis 
  Baird 
  & 
  Girard. 
  R. 
  (130) 
  

   158 
  Catostomus 
  nebulifer 
  Garinan. 
  R. 
  (130c.) 
  

  

  159. 
  Catostomus 
  retropinnis 
  Jordan. 
  R. 
  (130) 
  

  

  160. 
  Catostomus 
  catostomus 
  6 
  Forster. 
  Vn. 
  Y. 
  (132) 
  

  

  161. 
  Catostomus 
  tahoensis 
  Gill 
  & 
  Jordan. 
  R. 
  (133) 
  

  

  162. 
  Catostomus 
  labiatus 
  Ayres. 
  T. 
  (133) 
  

  

  163. 
  Catostomus 
  macrochilus 
  Girard. 
  T. 
  (13G) 
  

  

  164. 
  Catostomus 
  occidentalis 
  Ayres. 
  T. 
  (137) 
  

  

  1 
  All 
  the 
  specimens 
  of 
  Carpiodes 
  from 
  east 
  of 
  the 
  Allegheny 
  Mountains 
  examined 
  

   by 
  me 
  belong 
  to 
  a 
  species 
  closely 
  related 
  to 
  I. 
  velifer, 
  but 
  with 
  the 
  opercle 
  nearly 
  

   smooth, 
  instead 
  of 
  strongly 
  striate, 
  as 
  in 
  the 
  western 
  species. 
  In 
  the 
  eastern 
  form, 
  7. 
  

   cuprinus, 
  the 
  eye 
  is 
  quite 
  small, 
  the 
  body 
  rather 
  deep, 
  and 
  the 
  dorsal 
  fin 
  rather 
  high. 
  

  

  2 
  Pantosteus 
  bardus 
  and 
  delphiruis 
  are 
  almost 
  certainly 
  identical 
  with 
  P. 
  plebeius. 
  The 
  

   type 
  of 
  the 
  latter 
  species 
  has 
  the 
  scales 
  90-30, 
  less 
  crowded 
  forwards 
  than 
  in 
  P. 
  genero- 
  

   su8; 
  those 
  before 
  the 
  dorsal 
  much 
  less 
  reduced 
  in 
  size. 
  Dorsal 
  rays, 
  9 
  ; 
  head,4f; 
  depth, 
  

   5 
  ; 
  snout 
  moderately 
  broad, 
  projecting 
  ; 
  fins 
  much 
  lower 
  than 
  in 
  P. 
  guzmaniensis. 
  

  

  3 
  Pantosteus 
  platyrhynchus 
  is 
  based 
  on 
  shriveled 
  specimens 
  of 
  P. 
  generosus. 
  

  

  4 
  The 
  type 
  of 
  Catostomus 
  guzmaniensis, 
  lately 
  examined 
  by 
  me, 
  is 
  a 
  Pantosteus, 
  and 
  I 
  

   am 
  unable 
  to 
  distinguish 
  it 
  from 
  the 
  type 
  of 
  P. 
  virescens 
  on 
  comparison 
  of 
  the 
  two 
  

   specimens. 
  Lat. 
  1. 
  100 
  in 
  guzmaniensis. 
  Scales 
  before 
  dorsal, 
  40 
  to 
  53 
  ; 
  fins 
  high. 
  

  

  r 
  ' 
  The 
  type 
  of 
  Catostomus 
  clarlci, 
  lately 
  found, 
  belongs 
  to 
  a 
  species 
  very 
  closely 
  related 
  

   to 
  C. 
  arceopus, 
  having 
  the 
  restricted 
  fontanelle 
  and 
  cartilaginous 
  lips 
  of 
  the 
  latter 
  

   species, 
  but 
  with 
  the 
  scales 
  less 
  crowded 
  anteriorly, 
  there 
  being 
  but 
  23 
  in 
  a 
  line 
  before 
  

   the 
  dorsal 
  instead 
  of 
  42, 
  as 
  in 
  C. 
  arceopus. 
  D. 
  11 
  ; 
  lat. 
  1. 
  70. 
  C. 
  discobolus, 
  C. 
  araopus, 
  

   and 
  C. 
  clarki 
  mark 
  a 
  transition 
  from 
  Catostomus 
  toward 
  Pantosteus. 
  

  

  Called 
  in 
  the 
  text, 
  Catostomus 
  longirostris. 
  The 
  form 
  described 
  by 
  Mr. 
  Mather 
  

   under 
  the 
  name 
  of 
  Catostomus 
  nanomyzon 
  should 
  apparently 
  be 
  referred 
  to 
  this 
  species. 
  

   Brown 
  ; 
  male 
  with 
  a 
  red 
  lateral 
  band 
  in 
  the 
  breeding 
  season 
  ; 
  head 
  slender, 
  flat- 
  

   tened 
  above 
  ; 
  the 
  snout 
  shorter 
  than 
  in 
  C. 
  catostomus 
  ; 
  lips 
  thick, 
  the 
  lower 
  with 
  3 
  

   or 
  4 
  rows 
  of 
  tubercles 
  ; 
  eye 
  large, 
  4 
  in 
  head, 
  L} 
  in 
  snout. 
  Scales 
  smaller 
  anteriorly, 
  

   but 
  little 
  crowded; 
  dorsal 
  higher 
  than 
  long; 
  pectorals 
  reaching 
  front 
  of 
  dorsal; 
  

   head, 
  4 
  ; 
  depth, 
  5; 
  D. 
  1, 
  10; 
  A. 
  7; 
  V. 
  9 
  ; 
  scales, 
  14-99-.11 
  ; 
  L. 
  (spawning 
  specimens) 
  

   4£ 
  inches. 
  Big 
  Moose 
  Lake, 
  Adirondack 
  region. 
  Apparently 
  a 
  dwarfed 
  brook 
  variety 
  

   of 
  C. 
  catostomus, 
  but 
  inhabiting 
  the 
  same 
  region 
  and 
  spawning 
  at 
  a 
  much 
  smaller 
  size. 
  

   (Mather.) 
  (Catostomus 
  nanomyzon, 
  Twelfth 
  Rept. 
  Survey 
  Adirondack 
  Region, 
  1-84, 
  

   36.) 
  

  

  