﻿DESCRIPTION 
  OF 
  ANGUILLA 
  MANABEI, 
  A 
  NEW 
  EEL 
  

   FROM 
  JAPAN. 
  

  

  By 
  David 
  Starr 
  Jordan, 
  

  

  OJ 
  Stanford 
  University, 
  California. 
  

  

  During 
  a 
  recent 
  visit 
  to 
  Japan 
  the 
  writer 
  found, 
  in 
  the 
  collection 
  

   made 
  by 
  his 
  former 
  student, 
  Mr. 
  Yoshiro 
  Manabe, 
  for 
  the 
  Kwansei 
  

   Gakuin 
  (College) 
  in 
  Kobe, 
  a 
  species 
  of 
  eel 
  apparently 
  new 
  to 
  science. 
  

   It 
  may 
  be 
  described 
  as 
  follows 
  : 
  

  

  ANGUILLA 
  MANABEI 
  Jordan, 
  new 
  species. 
  

   Plate 
  57. 
  

  

  Head 
  2 
  times 
  in 
  trunk 
  and 
  6§ 
  in 
  length; 
  IJ 
  in 
  distance 
  from 
  mouth 
  

   to 
  doi-sal; 
  upper 
  jaw 
  3 
  in 
  head, 
  extending 
  much 
  beyond 
  eye; 
  lower 
  jaw 
  

   slightly 
  projecting; 
  snout 
  rather 
  obtuse, 
  flattish 
  above, 
  5^ 
  in 
  head; 
  

   eye 
  2^ 
  in 
  snout; 
  distance 
  from 
  front 
  of 
  dorsal 
  to 
  vent 
  If 
  in 
  head; 
  

   pectoral 
  rather 
  small, 
  3f 
  in 
  head; 
  distance 
  from 
  snout 
  to 
  dorsal 
  2f 
  

   in 
  length. 
  Color 
  in 
  alcohol, 
  olivaceous, 
  paler 
  below, 
  dorsal 
  olive, 
  

   anal 
  pale, 
  posterior 
  edge 
  of 
  the 
  continuous 
  vertical 
  fin 
  somewhat 
  

   darker. 
  

  

  This 
  species 
  is 
  known 
  from 
  one 
  specimen, 
  the 
  type 
  (Cat. 
  No. 
  74118, 
  

   U.S.N.M.), 
  16| 
  inches 
  long, 
  taken 
  by 
  Mr. 
  Yoshiro 
  Manabe 
  in 
  a 
  

   rapid 
  near 
  Koyadaira, 
  a 
  village 
  at 
  the 
  foot 
  of 
  Mount 
  Tsurugi, 
  in 
  

   Awa, 
  Shikoku. 
  The 
  tributary 
  running 
  north 
  about 
  22 
  miles, 
  joins 
  

   the 
  River 
  Yoshino 
  at 
  Anafuki 
  22 
  miles 
  distant 
  from 
  Tokushima, 
  a 
  

   large 
  city 
  at 
  the 
  mouth 
  of 
  the 
  river. 
  

  

  Anguilla 
  manabei 
  seems 
  nearest 
  to 
  Anguilla 
  aneitensis 
  described 
  

   by 
  Giinthcr^ 
  from 
  a 
  single 
  example 
  from 
  Aneitum. 
  The 
  dorsal 
  fin 
  

   in 
  A. 
  manabei 
  is 
  inserted, 
  however, 
  somewhat 
  farther 
  back 
  than 
  in 
  

   A. 
  aneitensis. 
  

  

  From 
  the 
  common 
  eel 
  or 
  "Unagi," 
  Anguilla 
  japonica, 
  found 
  

   everywhere 
  in 
  the 
  rivers 
  of 
  Japan, 
  A. 
  manahei 
  differs 
  widely. 
  The 
  

   head 
  is 
  much 
  larger, 
  the 
  jaws 
  longer, 
  the 
  eye 
  and 
  the 
  pectoral 
  smaller. 
  

  

  » 
  Cat. 
  Fish. 
  Brit. 
  Mus., 
  vol. 
  8, 
  1870, 
  p. 
  34. 
  

  

  Proceedings 
  U. 
  S. 
  National 
  Museum, 
  Vol. 
  44— 
  No. 
  1957. 
  

  

  359 
  

  

  