﻿830 
  KEPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [42] 
  

  

  129.— 
  ECHIOSTOMA 
  Lowe. 
  (135) 
  

  

  491. 
  Echiostoma 
  barbatum 
  Lowe. 
  B. 
  (471) 
  

  

  130.— 
  MALACOSTEUS 
  1 
  Ayres. 
  (13G) 
  

  

  492. 
  Malacosteus 
  niger 
  Ayres. 
  13. 
  (472) 
  

  

  131— 
  ASTRONESTHES 
  Richardson. 
  (137) 
  

  

  493. 
  Astronesthes 
  niger 
  Richardson. 
  13. 
  (473) 
  

  

  Family 
  XLVIIL— 
  AEGENTINID^. 
  2 
  (46 
  part.) 
  

  

  132.— 
  MICROSTOMA 
  Cavier. 
  (138) 
  

  

  494. 
  Microstoma 
  grcenlandicuni 
  Reinhardt. 
  G. 
  (474) 
  

  

  133.— 
  MALLOTUS 
  Cavier. 
  (140) 
  

  

  495. 
  Mallotus 
  villosus 
  Miiller. 
  A. 
  G. 
  (475, 
  476) 
  

  

  134.— 
  THALEICHTHYS 
  Girard. 
  (141) 
  

  

  496. 
  Thaleichthys 
  pacificus 
  Richardson. 
  A. 
  Ana. 
  (477) 
  

  

  135— 
  OSMERUS 
  Linnaeus. 
  (142) 
  

  

  497. 
  Osmerus 
  thaleichthys 
  3 
  Ayres. 
  C. 
  (478) 
  

  

  498. 
  Osmerus 
  mordax 
  Mitchill. 
  N. 
  Ana. 
  (480) 
  

  

  499. 
  Osmerus 
  dentex 
  Stcindachner. 
  A. 
  (481) 
  

  

  136.— 
  HYPOMBSUS 
  Gill. 
  (143) 
  

  

  500. 
  Hypomesus 
  pretiosus 
  Girard. 
  C. 
  (482) 
  

  

  501. 
  Hypomesus 
  olidus 
  Pallas. 
  A. 
  (483) 
  

  

  137— 
  ARGENTINA 
  Linmeus. 
  

  

  502. 
  Argentina 
  syrtensium 
  Goode 
  & 
  Beau. 
  B. 
  (484) 
  

  

  138.— 
  HYPHALONEDRUS 
  » 
  Goodo. 
  (145) 
  

  

  603. 
  Hyphalonedrus 
  chalybeius 
  Goode. 
  B. 
  (485) 
  

  

  increase 
  iu 
  size 
  backwards, 
  and 
  teeth 
  on 
  the 
  palate 
  enlarged, 
  one 
  on 
  each 
  side 
  of 
  the 
  

   vomer 
  and 
  several 
  on 
  the 
  palatines; 
  moderate 
  dorsals 
  obliquely 
  opposed, 
  forked 
  

   caudal 
  aud 
  pectorals, 
  each 
  with 
  a 
  separate 
  and 
  specialized 
  uppermost 
  ray." 
  ('Yirjjp, 
  

   above 
  ; 
  x°P 
  l(JT0C 
  ^ 
  split? 
  ha 
  allusion 
  to 
  the 
  division 
  of 
  the 
  pectorals.) 
  

  

  The 
  species 
  JT. 
  tanncri 
  Gill, 
  from 
  tho 
  Gulf 
  Stream 
  in 
  deep 
  water, 
  has 
  not 
  been 
  

   described. 
  

  

  1 
  Accordiug 
  to 
  Dr. 
  Bean, 
  the 
  so-called 
  barbel 
  at 
  tho 
  throat 
  in 
  Malacosteus 
  niger 
  is 
  a 
  

   muscle 
  apparently 
  concerned 
  in 
  the 
  movement 
  of 
  the 
  mandible. 
  

  

  2 
  Tho 
  Argentinince 
  may 
  well 
  be 
  regarded 
  as 
  a 
  family 
  distinct 
  from 
  tho 
  Salmonidce, 
  dif- 
  

   fering 
  in 
  tho 
  form 
  of 
  the 
  stomach, 
  as 
  stated 
  in 
  tho 
  Synopsis. 
  

  

  3 
  Osmerus 
  aticnuaius 
  Lockington, 
  an 
  extremely 
  doubtful 
  species, 
  is 
  here 
  omitted, 
  as 
  

   also 
  the 
  land-locked 
  varieties 
  of 
  O. 
  mordax. 
  

  

  ••This 
  genus 
  perhaps 
  belongs 
  to 
  the 
  ScopeUdw. 
  

  

  