﻿854 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [66] 
  

  

  Family 
  LXXVIIL— 
  POLYNEMID^. 
  (68) 
  

  

  224-POLYNEMUS 
  LinnaBUB. 
  

  

  743. 
  Polynemus 
  virginicus 
  1 
  Linnaeus. 
  W. 
  (650c) 
  

  

  744. 
  Polynemus 
  approximans 
  2 
  Lay 
  & 
  Bennett. 
  P. 
  

  

  745. 
  Polynemus 
  opercularis 
  3 
  Gill. 
  P. 
  

  

  746. 
  Polynemus 
  octonemus 
  4 
  Girard. 
  S. 
  

  

  Order 
  Z.— 
  PERCOMORPHI. 
  5 
  

   Family 
  LXXIX. 
  — 
  AMMODYTID^E. 
  (69) 
  

  

  225.-AMMODYTES 
  Linnams. 
  (204, 
  205) 
  

  

  747. 
  Ammodytes 
  americanus 
  DeKay. 
  N. 
  (652,656) 
  

   747b 
  Ammodytes 
  americanus 
  personatus 
  Girard. 
  A. 
  C. 
  (653) 
  

  

  748. 
  Ammodytes 
  alascanus 
  Cope. 
  A. 
  (654) 
  

  

  749. 
  Ammodytes 
  dubius 
  Reinhardt. 
  B. 
  (655) 
  

  

  Family 
  LXXX.— 
  EOHENEIDID^. 
  (70) 
  

  

  226.— 
  ECHENEIS. 
  (206) 
  

  

  750. 
  Echeneis 
  naucrates 
  Linmeus. 
  N. 
  S. 
  O. 
  W. 
  P. 
  C. 
  (657) 
  

  

  227.— 
  PHTHEIRXCHTHYS 
  Gill. 
  (2d 
  V 
  

  

  751. 
  Phtheirichthys 
  lineatus 
  Menzies. 
  S. 
  W. 
  (65??).) 
  

  

  228.— 
  REMORA 
  Gill. 
  (206c) 
  

  

  752. 
  Remora 
  remora 
  Linnaeus. 
  S. 
  O. 
  W. 
  P. 
  C. 
  (658) 
  

  

  753. 
  Remora 
  brachyptera 
  Lowe. 
  W. 
  O. 
  (659) 
  

  

  754. 
  Remora 
  albescens" 
  Temminck 
  & 
  Scblegel. 
  P. 
  S. 
  

  

  229.— 
  RHOMBOCHIRUS 
  Gill. 
  (207) 
  

  

  755. 
  Rhombochirus 
  osteochir 
  Cuvier. 
  O. 
  W. 
  (660) 
  

  

  1 
  Polynemus 
  virginicus 
  L. 
  Syst. 
  ~N&t.=Polyclaety1us 
  plumieri 
  Lacepede. 
  See 
  Jordan, 
  

   Proc. 
  U. 
  S. 
  Nat, 
  Mus., 
  1884, 
  118. 
  

  

  ^Polynemus 
  approximans 
  Lay 
  & 
  Bennett, 
  Beechey's 
  Voyage, 
  Zool. 
  Fish, 
  57; 
  Gunther, 
  

   Fish. 
  Centr. 
  Araer., 
  1869, 
  423. 
  Gulf 
  of 
  California 
  to 
  Panama. 
  

  

  3 
  Trichidion 
  opercularis 
  Gill, 
  Proc. 
  Ac 
  Nat. 
  Sci. 
  Phila., 
  1863, 
  169 
  = 
  Polynemus 
  meJan- 
  

   opoma 
  Gunther, 
  Fish. 
  Centr. 
  Amer. 
  1869, 
  421. 
  Gulf 
  of 
  California 
  to 
  Panama. 
  

  

  4 
  Polynemus 
  octofilis 
  Gill 
  is 
  without 
  much 
  doubt 
  the 
  adult 
  form 
  of 
  P. 
  octonemus. 
  See 
  

   Jordan 
  & 
  Gilbert, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1882, 
  590. 
  The 
  pectoral 
  fin 
  grows 
  darker 
  in 
  

   color 
  and 
  the 
  pectoral 
  filaments 
  shorter 
  with 
  age 
  in 
  other 
  species 
  of 
  Polynemus 
  and 
  

   probably 
  in 
  this 
  one 
  also. 
  

  

  *• 
  Percomorph'i 
  and 
  PharyngognatM 
  Cope, 
  Trans. 
  Am. 
  Philos. 
  Soc. 
  Phila., 
  1871, 
  l 
  - 
  

   (exclusive 
  of 
  the 
  Bhegnop1eri=Polynemidce, 
  which 
  have 
  the 
  veutral 
  fins 
  truly 
  abdominal 
  

   and 
  may 
  be 
  placed 
  in 
  the 
  Percesoces.) 
  

  

  |J 
  Echeneis 
  albescens 
  Temminck 
  & 
  Scblegel, 
  Fauna 
  Japoniea, 
  Poiss., 
  272; 
  Gunther 
  II, 
  

   377; 
  Streets, 
  Bull. 
  U. 
  S. 
  Nat. 
  Mus., 
  1877, 
  VII, 
  54. 
  Coasts 
  of 
  Eastern 
  Asia, 
  a 
  specimen 
  

   taken 
  at 
  La 
  Paz, 
  Gulf 
  of 
  California 
  (Streets) 
  and 
  in 
  the 
  Gulf 
  of 
  Mexico 
  (Bean). 
  D. 
  

   XIII-22 
  ; 
  A. 
  22. 
  

  

  The 
  Echeneididce 
  are 
  regarded 
  by 
  Dr. 
  Gill 
  as 
  constituting 
  a 
  distinct 
  suborder, 
  

   Discocephali, 
  defined 
  by 
  him 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1882, 
  563. 
  

  

  