﻿OF 
  THE 
  MORAY 
  FIRTH 
  AREA. 
  

  

  269 
  

  

  of 
  H. 
  nobilissimus, 
  Ag. 
  I 
  have 
  not 
  seen 
  the 
  original 
  specimens, 
  

   but 
  so 
  far 
  as 
  one 
  may 
  judge 
  from 
  M. 
  Lohest's 
  figures, 
  1 
  I 
  can 
  also 
  

   see 
  no 
  essential 
  difference 
  between 
  his 
  H. 
  inflexus 
  and 
  the 
  present 
  

   species. 
  

  

  Detached 
  scales 
  at 
  Newton, 
  Rosebrae, 
  Leggat, 
  Hospital 
  

   Quarry, 
  Laverockloch, 
  Pluscarden, 
  Bishopmill, 
  Scaat 
  Craig. 
  At 
  

   Cuttie's 
  Hillock 
  a 
  portion 
  of 
  the 
  body 
  has 
  occurred 
  in 
  the 
  same 
  

   quarry 
  as 
  that 
  in 
  which 
  Triassic 
  beds 
  yielding 
  reptilian 
  remains 
  

   have 
  been 
  worked, 
  but 
  in 
  a 
  lower 
  stratum. 
  

  

  Holoptychius 
  giganteus, 
  Agassiz. 
  

   Syn. 
  Holoptychius 
  piinceps, 
  M'Coy. 
  

  

  Detached 
  scales, 
  teeth, 
  and 
  jaws, 
  at 
  Sweet 
  Hillock, 
  Carclen 
  Hill, 
  

   Millstone 
  Quarry, 
  Newton, 
  Scaat 
  Craig. 
  

  

  The 
  teeth 
  and 
  jaws, 
  for 
  which 
  the 
  late 
  Sir 
  Richard 
  Owen 
  

   instituted 
  the 
  genus 
  Dendrodus, 
  certainly 
  belong 
  to 
  Holoptychius, 
  

   and 
  the 
  teeth 
  of 
  the 
  closely 
  allied, 
  if 
  not 
  identical, 
  Glyptolepis 
  

   possess 
  the 
  same 
  structure. 
  This 
  was 
  indicated 
  already 
  in 
  1842 
  

   by 
  Patrick 
  Duff 
  in 
  his 
  Geology 
  of 
  Moi'ay 
  (7, 
  pp. 
  30-31), 
  and 
  subse- 
  

   quently 
  stated 
  as 
  certain 
  by 
  Hugh 
  Miller 
  (14, 
  chap. 
  xii.). 
  The 
  

   last-mentioned 
  author 
  also 
  figured 
  in 
  1849 
  (Footpiints 
  of 
  the 
  Creator, 
  

   first 
  edition, 
  pp. 
  81, 
  82) 
  the 
  dendrodont 
  structure 
  of 
  the 
  teeth 
  of 
  

   Glyptolepis 
  pawitlens, 
  which 
  he 
  however 
  unfortunately 
  attributed 
  

   to 
  1 
  Asterolepis 
  ' 
  (i.e. 
  Homosteus). 
  That 
  this 
  peculiar 
  structure 
  of 
  

   the 
  teeth 
  is 
  simply 
  one 
  of 
  the 
  family 
  characteristics 
  of 
  the 
  

   Holoptychiida? 
  is 
  a 
  fact 
  upon 
  which 
  I 
  have 
  myself 
  repeatedly 
  

   insisted, 
  and 
  which 
  is 
  now, 
  I 
  think, 
  generally 
  acknowledge 
  1. 
  

  

  The 
  large 
  two-edged 
  conical 
  teeth 
  known 
  as 
  1 
  )ni<lr<nhi* 
  Lip<>r- 
  

   catus, 
  Owen, 
  and 
  D. 
  latus, 
  Duff, 
  belong 
  pretty 
  certainly 
  to 
  Holopty- 
  

   chius 
  giganteus, 
  Agassiz, 
  with 
  the 
  scales 
  of 
  which 
  they 
  are 
  

   associated 
  at 
  Scaat 
  Craig, 
  Newton, 
  and 
  the 
  Millstone 
  Quarry. 
  

   At 
  these 
  localities 
  portions 
  of 
  jaws 
  of 
  considerable 
  size, 
  with 
  the 
  

   teeth 
  attached, 
  have 
  occurred, 
  and 
  these 
  jaws 
  are 
  unmistakably 
  

   Holoptychian 
  in 
  configuration. 
  

  

  The 
  more 
  slender 
  and 
  elongated 
  teeth, 
  usually 
  sigmoidally 
  

   curved, 
  and 
  which 
  are 
  not 
  two-edged 
  until 
  pretty 
  high 
  up 
  in 
  the 
  

   shaft, 
  known 
  as 
  Demlrodus 
  strigatus 
  and 
  sigmoiditis, 
  Owen, 
  have 
  in 
  

  

  1 
  Ann. 
  Soc. 
  Geol. 
  Bthj., 
  vol. 
  xv., 
  Plate 
  i. 
  fig. 
  5; 
  Plate 
  ii. 
  tigs. 
  1-4; 
  Plate 
  iii. 
  

   figs. 
  1, 
  3, 
  5, 
  6; 
  Plate 
  v. 
  figs. 
  l-3(//. 
  Deiralqnd); 
  and 
  P1:U.- 
  iv. 
  tL- 
  17 
  // 
  / 
  

  

  