﻿844 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [56] 
  

  

  Family 
  LXL— 
  SIMEXCHELYID^. 
  

  

  183.— 
  SIMENCHELYS 
  Gill. 
  (174) 
  

  

  639. 
  Simenchelys 
  parasiticus 
  Gill. 
  B. 
  (589) 
  

  

  Family 
  LXIL— 
  SYXAPHOBRAXCHID^E. 
  (54) 
  

  

  184.— 
  SYNAPHOBRANCHUS 
  Johnson. 
  (176) 
  

  

  640. 
  Synaphobranchus 
  pimiatus 
  Gronow. 
  B. 
  (590) 
  

  

  185.— 
  HISTIOBRANCHUS 
  1 
  Gill. 
  

  

  641. 
  Histiobranchus 
  infernalis 
  Gill. 
  B. 
  

  

  Family 
  LXIIL— 
  NEMICHTHYID^ 
  Richardsoii. 
  (56) 
  

  

  186— 
  NEMICHTHYS 
  Richardson. 
  (178) 
  

  

  642. 
  Nemichthys 
  scolopaceus 
  Richardsou. 
  B. 
  (592) 
  

  

  643. 
  Nemichthys 
  avocetta 
  Jordan 
  & 
  Gilbert, 
  B. 
  C. 
  (593) 
  

  

  187. 
  -LABICHTHYS 
  2 
  Gill 
  & 
  Ryder. 
  

  

  644. 
  Labichthys 
  carinatus 
  3 
  Gill 
  & 
  Ryder. 
  B. 
  

  

  645. 
  Labichthys 
  elongatus 
  4 
  Gill 
  & 
  Ryder. 
  B. 
  

  

  1 
  HlSTIOBBANCHUS 
  Gill. 
  

  

  (Gill, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1883, 
  255; 
  type, 
  Histiobranchus 
  infernalis 
  Gill). 
  

  

  " 
  Synaphobranchid, 
  with 
  the 
  dorsal 
  fin 
  protracted 
  almost 
  as 
  far 
  forward 
  as 
  the 
  base 
  

   of 
  the 
  pectoral 
  fin, 
  and 
  au 
  isolated 
  small 
  patch 
  of 
  teeth 
  on 
  the 
  vomer, 
  behiud 
  that 
  on 
  

   its 
  head." 
  ("IStiov, 
  sail, 
  i. 
  e., 
  dorsal 
  fin; 
  Bpayxos, 
  gill; 
  dorsal 
  commencing 
  above 
  gill 
  

   opening). 
  

  

  Histiobranchus 
  infernalis 
  Gill. 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1882, 
  255. 
  Gulf 
  Stream, 
  lati- 
  

   tude 
  35°, 
  at 
  a 
  depth 
  of 
  1,731 
  fathoms. 
  

  

  - 
  Labichthys 
  Gill 
  & 
  Ryder. 
  

  

  (Gill 
  & 
  Ryder, 
  Proc.U. 
  S. 
  Nat. 
  Mus., 
  1883, 
  261 
  ; 
  type. 
  Labichthys 
  carinatus 
  Gill 
  & 
  

   Ryder.) 
  

  

  " 
  Nemichthyids 
  with 
  the 
  head 
  behind 
  the 
  eyes, 
  contracted, 
  with 
  very 
  attenuated 
  

   jaws, 
  the 
  branchiostegous 
  membrane 
  connected 
  to 
  the 
  throat, 
  and 
  the 
  branchial 
  ap- 
  

   ertures 
  limited 
  to 
  the 
  sides, 
  with 
  small 
  conical 
  teeth 
  in 
  a 
  band 
  along 
  the 
  vomer, 
  and 
  

   otherwise 
  dentition 
  of 
  Nemichthys, 
  a 
  black 
  epidermis, 
  and 
  the 
  tail 
  abruptly 
  truncated. 
  

   {Aafiii, 
  a 
  pair 
  of 
  forceps 
  ; 
  Ix^v-,, 
  fish. 
  ) 
  This 
  jjjenus 
  and 
  the 
  two 
  which 
  follow 
  are 
  very 
  

   insufficiently 
  described. 
  In 
  none 
  of 
  them 
  is 
  the 
  character 
  of 
  the 
  posterior 
  dorsal 
  rays 
  

   described. 
  

  

  3 
  Labichthys 
  carinatus 
  Gill 
  & 
  Ryder, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1883.261. 
  Gulf 
  Stream, 
  

   latitude 
  41°, 
  at 
  906 
  fathoms. 
  

  

  * 
  Labichthys 
  elongatus 
  Gill 
  & 
  Ryder, 
  1. 
  c, 
  1883, 
  262. 
  Gull' 
  Stream, 
  latitude 
  39°, 
  at 
  

   1,628 
  fathoms. 
  

  

  