﻿494 
  

  

  rnocKEJUxas 
  of 
  the 
  national 
  museum. 
  

  

  Jtf/oma 
  f/ibhom 
  (iiiiARD, 
  Proc. 
  Ac. 
  Nat. 
  Sci. 
  Phila,, 
  1856, 
  p. 
  207. 
  — 
  GiRAun, 
  U. 
  S. 
  

   Mox. 
  Bound. 
  Surv., 
  Zool., 
  18.59, 
  p. 
  61. 
  

  

  Tifiomn 
  intermedin 
  Girahd, 
  Proc. 
  Ac. 
  Nat. 
  Sci. 
  rbihi., 
  1856, 
  p. 
  206. 
  

  

  SquaVms 
  iniermedius 
  .Tokdan 
  & 
  Gilbkrt, 
  Synopsis, 
  1883, 
  p. 
  238. 
  

  

  Leiieiscns 
  iiiiermedhiH 
  Jokdax 
  & 
  Evkhmaxx, 
  Fi.sbcs 
  of 
  N. 
  andM. 
  A., 
  1896, 
  p 
  235. 
  

  

  Gila 
  vifira 
  Coi'K, 
  Zool. 
  Wht^eler's 
  Expl. 
  W. 
  100th 
  Mer., 
  V, 
  1875 
  (1876), 
  p. 
  663. 
  

  

  Squaliiis 
  nifira 
  Joudan 
  & 
  Gilbert, 
  Synopsis, 
  1883, 
  p. 
  239. 
  

  

  LexciscKs 
  niger 
  .Jordan 
  &. 
  Evermann, 
  Fishes 
  of 
  N. 
  and 
  M. 
  A., 
  1896, 
  i>. 
  235. 
  

  

  Squaliiis 
  lemmoni 
  Rosa 
  Smith, 
  Proc. 
  Cal. 
  Ac. 
  Sci., 
  1884, 
  p. 
  3. 
  

  

  Leiicisciis 
  zunnensis 
  GC'NTHKH, 
  Cat., 
  VII, 
  1868, 
  p. 
  241. 
  Substitute 
  for 
  /.. 
  t/rdriUs, 
  

   preoccupied. 
  

   Numerous 
  specimens 
  about 
  ;> 
  iuclies 
  in 
  length 
  were 
  obtained 
  at 
  

   Tempe, 
  and 
  at 
  Chiiio, 
  Arizona. 
  It 
  is 
  more 
  robust 
  than 
  the 
  younj>- 
  of 
  

   Gila 
  robusta, 
  and 
  has 
  the 
  scales 
  a 
  little 
  larger, 
  those 
  below 
  the 
  lateral 
  

   line 
  specked 
  with 
  black. 
  The 
  specimens 
  taken 
  at 
  Chino 
  diifer 
  from 
  the 
  

   Tempe 
  specimens 
  in 
  the 
  slightly 
  deeper 
  caudal 
  peduncle. 
  This 
  species 
  

   varies 
  greatly 
  in 
  its 
  scale 
  formula, 
  as 
  can 
  be 
  seen 
  from 
  the 
  accompany- 
  

   ing 
  table. 
  Like 
  G. 
  elegans 
  and 
  G. 
  rohnsta 
  it 
  is 
  found 
  throughout 
  the 
  

   Colorado 
  River 
  Basin. 
  It 
  has 
  been 
  commonly 
  known 
  as 
  L. 
  nif/e)-, 
  but 
  

   there 
  is 
  no 
  reason 
  to 
  consider 
  the 
  two 
  nominal 
  species 
  distinct. 
  iSqua- 
  

   lius 
  lemmoni 
  is 
  described 
  as 
  having 
  the 
  scales 
  68, 
  but 
  in 
  one 
  of 
  the 
  types 
  

   we 
  find 
  them 
  21-75-10. 
  It 
  may 
  therefore 
  well 
  belong 
  here. 
  

  

  Tahle 
  of 
  measurements. 
  

  

  10. 
  TIAROGA 
  COBITIS 
  Girard. 
  

   (Plate 
  XXXVII.) 
  

  

  Several 
  specimens 
  of 
  this 
  interesting 
  species 
  were 
  obtained 
  at 
  Chino, 
  

   Arizona, 
  from 
  a 
  tributary 
  of 
  the 
  Eio 
  Verde, 
  which 
  belongs 
  to 
  the 
  Ciila 
  

   Basin. 
  It 
  is 
  of 
  unusual 
  interest, 
  not 
  having 
  been 
  taken 
  since 
  the 
  dis- 
  

   covery 
  of 
  the 
  types 
  in 
  1851. 
  Girard's 
  specimens 
  were 
  from 
  the 
  Eio 
  

   San 
  Pedro, 
  a 
  tributary 
  of 
  the 
  Gila. 
  

  

  Head 
  4 
  to 
  4Jj 
  depth 
  ^; 
  eye 
  small, 
  4 
  to 
  U 
  times 
  in 
  the 
  head, 
  li 
  in 
  

   the 
  snout, 
  f 
  interorbital 
  space. 
  The 
  snout 
  is 
  contained 
  3 
  to 
  3^ 
  times 
  

   iu 
  the 
  length 
  of 
  the 
  head. 
  D. 
  8; 
  A. 
  7. 
  Isthmus 
  very 
  wide, 
  2 
  in 
  head. 
  

  

  