﻿840 
  RKPORT 
  OF 
  COMMISSIONER 
  OF 
  FTSH 
  AND 
  FISHERIES. 
  [52] 
  

  

  610. 
  Sidera 
  funebris 
  ' 
  Ranzani. 
  P. 
  (580 
  b.) 
  

  

  611. 
  Sidera 
  moringa 
  Cuvier. 
  P. 
  (580 
  c.) 
  

  

  Ordeh 
  S— 
  ENCHELYCEPHALP 
  (0.) 
  

  

  Family 
  LIX.— 
  COXGRID^. 
  3 
  (53 
  part.) 
  

  

  171.— 
  ICHTHYAPUS 
  * 
  Barneville. 
  

  

  612. 
  Ichthyapus 
  selachops 
  Jordan 
  & 
  Gilbert. 
  P. 
  

  

  172.— 
  LETHARCHUS 
  Goode 
  & 
  Beau. 
  (168 
  6.) 
  

  

  613. 
  Letharchus 
  velifer 
  Goode 
  & 
  Bean. 
  S. 
  (580 
  6.) 
  

  

  173.— 
  CALLECHELYS 
  6 
  Kaup. 
  (169) 
  

  

  614. 
  Callechelys 
  scuticaris 
  Goode 
  & 
  Bean. 
  S. 
  (581) 
  

  

  615. 
  Callechelys 
  teres 
  Goode 
  & 
  Bean. 
  S. 
  (5816.) 
  

  

  616. 
  Callechelys 
  bascanium 
  6 
  Jordan. 
  W. 
  

  

  'The 
  species 
  called 
  in 
  the 
  Synopsis 
  (p. 
  895) 
  Murcena 
  afra 
  should 
  stand 
  as 
  Murcena 
  

   or 
  Sidera 
  funebris. 
  

  

  In 
  life 
  this 
  species 
  is 
  bright 
  yellowish 
  green, 
  with 
  some 
  oblique 
  dark 
  streaks 
  on 
  the 
  

   fins. 
  It 
  reaches 
  a 
  very 
  large 
  size 
  and 
  is 
  much 
  dreaded 
  by 
  fishermen. 
  To 
  its 
  synonymy 
  

   add: 
  Gymnotliorax 
  funebris 
  Ranzani, 
  Nov. 
  Comm. 
  Ac. 
  Sci. 
  Inst. 
  Bonon., 
  IV, 
  1840, 
  76; 
  

   Murcena 
  lineopinnis 
  Richardson, 
  Voy. 
  Erebus 
  & 
  Terror, 
  1844, 
  89 
  ; 
  Murcena 
  infernalis 
  

   Poey, 
  Memorias 
  Cuba, 
  II, 
  347, 
  1861 
  ; 
  Murwna 
  afra 
  Giinther, 
  IX, 
  123 
  ; 
  apparently 
  not 
  

   Gymnothorax 
  afer, 
  Bloch, 
  Ausl. 
  Fische, 
  1797, 
  IX, 
  85, 
  tab. 
  417, 
  a 
  fish 
  from 
  Guinea, 
  de- 
  

   scribed 
  as 
  being 
  brown, 
  marbled, 
  and 
  banded 
  with 
  white. 
  The 
  present 
  species 
  is 
  al- 
  

   ways 
  unicolor, 
  green 
  in 
  life, 
  and 
  brown 
  in 
  spirits.) 
  

  

  2 
  Enchelycephali 
  Cope, 
  Trans. 
  Am. 
  Philos. 
  Soc, 
  1871, 
  455. 
  

  

  3 
  Thefamily 
  of 
  Anguillidce, 
  as 
  given 
  in 
  the 
  text, 
  is 
  not 
  a 
  natural 
  one. 
  For 
  the 
  present 
  

   we 
  may 
  subtract 
  the 
  aberrant 
  genera 
  Angnilla 
  and 
  Simenchelys, 
  leaving 
  the 
  remaining 
  

   genera 
  in 
  one 
  group, 
  Congridw. 
  

  

  4 
  Ichthyapus 
  Barneville. 
  

  

  (Ophisur 
  aphis 
  Kaup; 
  Apterichthys 
  Durne'ril.) 
  

  

  (Barneville, 
  Revue 
  Zoologique, 
  1847, 
  219; 
  type 
  Ichthyapus 
  acutirostris 
  Barneville.) 
  

  

  This 
  genus 
  differs 
  from 
  Ophichthys 
  chiefly 
  in 
  the 
  entire 
  absence 
  of 
  fins. 
  The 
  snout 
  

  

  projects 
  beyond 
  the 
  small 
  mouth, 
  giving 
  a 
  shark-like 
  physiognomy, 
  and 
  the 
  teeth 
  are 
  

  

  small, 
  mostly 
  uniserial. 
  ("fyQuS, 
  fish; 
  aitov 
  5, 
  without 
  feet.) 
  Ichthyapus 
  selachops 
  = 
  

  

  Apterichthys 
  selachops 
  Jordan 
  & 
  Gilbert, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1882, 
  356. 
  Cape 
  San 
  

  

  Lucas. 
  

  

  5 
  Callechelys 
  Kaup 
  (see 
  Synopsis, 
  p. 
  897), 
  is 
  distinguished 
  from 
  Coecula 
  by 
  the 
  

   development 
  of 
  the 
  dorsal 
  fin, 
  which 
  begins 
  on 
  the 
  head. 
  In 
  Coecula 
  {Sphagebranchus), 
  

   it 
  begins 
  behind 
  the 
  gill 
  opening. 
  

  

  6 
  Callechelys 
  bascanium 
  Jordan. 
  

  

  Dark 
  brown, 
  nearly 
  uniform 
  ; 
  fins 
  a 
  little 
  paler. 
  Body 
  extremely 
  slender, 
  subterete, 
  

   its 
  greatest 
  depth 
  little 
  more 
  than 
  two-fifths 
  length 
  of 
  head 
  ; 
  head 
  short 
  ; 
  snout 
  7 
  in 
  

   head; 
  mouth 
  very 
  small, 
  the 
  lower 
  jaw 
  thin, 
  included, 
  not 
  extending 
  to 
  the 
  anterior 
  

   nostril, 
  which 
  is 
  in 
  a 
  short 
  tube 
  ; 
  teeth 
  short, 
  subconic, 
  bluntish, 
  a 
  little 
  unequal, 
  

   their 
  points 
  directed 
  backwards 
  ; 
  lower 
  teeth 
  nearly 
  uniserial 
  ; 
  upper 
  teeth 
  uniserial 
  

   laterally, 
  partly 
  biserial 
  anteriorly 
  ; 
  vomerine 
  teeth 
  forming 
  a 
  rhombic 
  patch. 
  Eye 
  

   moderate, 
  its 
  length 
  more 
  than 
  half 
  that 
  of 
  snout, 
  its 
  center 
  nearly 
  over 
  middle 
  of 
  

   upper 
  jaw 
  ; 
  cleft 
  of 
  mouth 
  3J 
  in 
  length 
  of 
  head. 
  Gill 
  openings 
  vertical, 
  about 
  as 
  

   wide 
  as 
  isthmus 
  ; 
  its 
  upper 
  edge 
  on 
  level 
  of 
  upper 
  base 
  of 
  pectoral 
  ; 
  pectoral 
  developed, 
  

   email, 
  a 
  little 
  broader 
  than 
  long, 
  nearly 
  as 
  long 
  as 
  snout 
  ; 
  dorsal 
  fin 
  very 
  low, 
  begin- 
  

   ning 
  at 
  a 
  point 
  midway 
  between 
  front 
  of 
  eye 
  and 
  gill 
  opening; 
  anal 
  similar 
  to 
  dorsal. 
  

  

  