﻿[57] 
  CATALOGUE 
  OF 
  THE 
  FISHES 
  OF 
  NORTH 
  AMERICA. 
  845 
  

  

  188.— 
  SPINIVOMER 
  1 
  Gill 
  & 
  Ryder. 
  

  

  646. 
  Spinivonier 
  goodei 
  Gill 
  & 
  Ryder. 
  B. 
  

  

  189.— 
  SERRIVOMER 
  * 
  Gill 
  & 
  Ryder. 
  

  

  647. 
  Serrivonier 
  beani 
  Gill 
  & 
  Ryder. 
  B. 
  

  

  Order 
  T— 
  LYOMERI 
  3 
  

  

  Family 
  LXI\ 
  .— 
  SACCOPHAKYXGLD^E. 
  (55) 
  

   190.— 
  SACCOPHARYNX 
  Mitchill. 
  (177) 
  

  

  648. 
  Saccopharynx 
  ampullaceus 
  4 
  Harwood. 
  B. 
  (501) 
  

  

  Family 
  LXV.— 
  EUEYPHAEYNGID^. 
  5 
  

  

  1 
  Spinivomer 
  Gill 
  & 
  Ryder. 
  

  

  (Gill 
  & 
  Ryder, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1883, 
  261; 
  type, 
  Spinivomer 
  goodei 
  G. 
  & 
  R.) 
  

  

  " 
  Nemiclithyids 
  with 
  a 
  rectilinear 
  occipitorostral 
  outline, 
  with 
  very 
  attenuated 
  jaws, 
  

  

  high 
  mandibular 
  rami, 
  the 
  branchial 
  aperture 
  nearly 
  confluent, 
  enlarged 
  acute 
  conic 
  

  

  teeth 
  in 
  a 
  median 
  row 
  on 
  the 
  vomer, 
  and 
  with 
  a 
  silvery 
  epidermis 
  and 
  filiform 
  tail." 
  

  

  (Latin, 
  spina, 
  spine; 
  vomer, 
  vomer.) 
  

  

  Spinivomer 
  goodei 
  Gill 
  & 
  Ryder, 
  1. 
  c, 
  261. 
  Gulf 
  Stream, 
  latitude 
  38°, 
  at 
  2,361 
  

   fathoms. 
  

  

  3 
  Serrivomek 
  Gill 
  & 
  Ryder. 
  

  

  (Gill 
  & 
  Ryder, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1883, 
  260; 
  type, 
  Serrivomer 
  beani 
  G. 
  & 
  R.) 
  

  

  '■ 
  Xemichthyids 
  with 
  the 
  head 
  behind 
  eyes 
  of 
  an 
  elongated 
  parallelogramic 
  form, 
  

   with 
  moderately 
  attenuated 
  jaws, 
  branchiostegal 
  membrane 
  confluent 
  at 
  posterior 
  

   margin, 
  but 
  with 
  the 
  branchial 
  aperture 
  limited 
  by 
  an 
  isthmus 
  except 
  at 
  the 
  margin, 
  

   and 
  with 
  lancet-shaped 
  vomerine 
  teeth 
  in 
  a 
  crowded 
  (sometimes 
  doubled) 
  row." 
  

  

  (Latin, 
  serra, 
  saw; 
  vomer, 
  vomer.) 
  

  

  Serrivomer 
  beani 
  Gill 
  & 
  Ryder, 
  1. 
  c, 
  261. 
  Gulf 
  Stream, 
  latitude 
  41°, 
  at 
  855 
  fathoms. 
  

  

  3 
  Order 
  T.— 
  LYOMERI. 
  

  

  " 
  Fishes 
  with 
  five 
  brauchial 
  arches 
  (none 
  modified 
  as 
  branchiostegal 
  or 
  pharyngeal) 
  

   far 
  behind 
  the 
  skull, 
  an 
  imperfectly 
  ossified 
  cranium 
  articulating 
  with 
  the 
  first 
  ver- 
  

   tebra 
  by 
  a 
  basioccipital 
  condyle 
  alone, 
  only 
  two 
  cephalic 
  arches, 
  both 
  freely 
  mo 
  'able, 
  

   (1) 
  an 
  anterior 
  dentigerous 
  one, 
  the 
  palatine, 
  and 
  (2) 
  the 
  suspensorial, 
  consisting 
  of 
  

   the 
  hyomandibular 
  and 
  quadrate 
  bones, 
  without 
  maxillary 
  bones 
  or 
  distinct 
  bony 
  

   elements 
  to 
  the 
  mandible, 
  with 
  an 
  imperfect 
  scapular 
  arch 
  remote 
  from 
  the 
  skull, 
  and 
  

   with 
  separately 
  ossified 
  but 
  imperfect 
  vertebrae." 
  (Gill 
  & 
  Ryder.) 
  

  

  Two 
  families 
  are 
  recognized 
  (Saccopharyngidce 
  and 
  Eurypharyngidce), 
  deep 
  sea 
  fishes 
  

   of 
  remarkable 
  appearance, 
  allied 
  to 
  the 
  eels. 
  The 
  species 
  are 
  little 
  known, 
  and 
  are 
  

   possibly 
  all 
  forms 
  of 
  a 
  single 
  one. 
  (Avo?, 
  loose 
  ; 
  juepoi, 
  part 
  or 
  segment.) 
  (Lyomeri 
  

   Gill 
  & 
  Ryder, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  1883, 
  263.) 
  

  

  4 
  The 
  name 
  Saccopharynx 
  flagellum 
  was 
  not 
  given 
  by 
  Mitchill, 
  but 
  by 
  Cuvier 
  (Regno 
  

   Animal, 
  Ed. 
  II) 
  in 
  1829. 
  The 
  name 
  ampullaceus 
  of 
  Harwood 
  has 
  therefore 
  priority, 
  it 
  

   really 
  referring 
  to 
  the 
  same 
  species. 
  For 
  an 
  exhaustive 
  discussion 
  of 
  our 
  knowledge 
  

   of 
  Saccopharynx 
  and 
  its 
  relationships 
  see 
  Gill, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus. 
  , 
  1884, 
  48. 
  

  

  6 
  The 
  family 
  Eurypharyngidw 
  is 
  thus 
  defined 
  by 
  Gill 
  & 
  Ryder 
  : 
  

  

  "Lyomeri 
  with 
  the 
  head 
  flat 
  above 
  and 
  with 
  a 
  transverse 
  rostral 
  margin, 
  at 
  the 
  

   outer 
  angles 
  of 
  which 
  the 
  eyes 
  are 
  exposed, 
  with 
  the 
  eyes 
  excessively 
  elongated 
  back- 
  

   wards 
  and 
  the 
  upper 
  parallel 
  and 
  closing 
  against 
  each 
  other 
  as 
  far 
  as 
  the 
  articulation 
  

  

  