﻿8 
  S. 
  A. 
  TULLBERG, 
  GRAPTOLITES 
  DESCRIBED 
  BY 
  HISINGER. 
  

  

  Previously 
  ^), 
  on 
  tlie 
  coutraiy, 
  lie 
  was 
  of 
  the 
  same 
  opinion 
  as 
  

   Wahlenberg. 
  

  

  Angelin 
  has 
  left 
  a 
  number 
  of 
  annotations 
  concerning 
  the 
  

   systematic 
  place 
  and 
  the 
  structure 
  of 
  the 
  Graptolites, 
  which 
  

   annotations 
  in 
  all 
  their 
  essentials 
  agree 
  with 
  the 
  opinions 
  ex- 
  

   pressed 
  by 
  Barrande 
  and 
  Hall. 
  He 
  coinpleted 
  also 
  a 
  plate 
  in 
  

   folio, 
  on 
  which 
  some 
  twenty 
  Swedish 
  Graptolites 
  of 
  the 
  most 
  

   important 
  types 
  are 
  delineated; 
  but 
  this 
  plate 
  has 
  never 
  

   been 
  pnblished. 
  

  

  In 
  the 
  Palaiontological 
  Department 
  of 
  the 
  State-Museum 
  

   in 
  Stockholm 
  the 
  type 
  specimens 
  are 
  preserved, 
  after 
  Avhich 
  

   the 
  figur 
  es 
  in 
  Hisingers' 
  Lethaea 
  suecica 
  were 
  executed. 
  As 
  the 
  

   figures, 
  which 
  he 
  has 
  given 
  in 
  that 
  Avork, 
  have 
  more 
  thau 
  

   once 
  occasioned 
  misconception, 
  the 
  names 
  having 
  been 
  em- 
  

   ployed 
  for 
  species, 
  actually 
  very 
  distinct 
  from 
  those 
  of 
  Hi- 
  

   SINGER, 
  it 
  is 
  naturally 
  most 
  desirable, 
  that 
  the 
  originals 
  should 
  

   be 
  submitted 
  to 
  an 
  exact 
  revision, 
  and 
  that 
  new, 
  accurate 
  

   and 
  complete 
  figures 
  of 
  them 
  should 
  be 
  published. 
  

  

  As 
  the 
  opportunity 
  of 
  exaraining 
  a 
  greater 
  number 
  of 
  

   specimens, 
  and 
  of 
  giving 
  new 
  and 
  better 
  figures 
  of 
  these 
  

   forms, 
  has 
  now 
  arrived, 
  owing 
  to 
  the 
  fact 
  that 
  there 
  exists 
  

   at 
  present 
  in 
  the 
  Swedish 
  State-Museum, 
  a 
  large 
  collection 
  

   of 
  Graptolites, 
  including, 
  together 
  with 
  Hisinger's 
  original 
  

   examples, 
  many 
  other 
  specimens 
  brought 
  together 
  by 
  the 
  

   late 
  Professor 
  Angelin, 
  by 
  Wegelin 
  and 
  by 
  other 
  investiga- 
  

   tors, 
  I 
  have 
  undertaken 
  this 
  task 
  at 
  the 
  request 
  of 
  the 
  Keeper 
  

   of 
  the 
  Palfeontological 
  Department 
  of 
  the 
  State-Museum, 
  Pro- 
  

   fessor 
  G. 
  Lindström. 
  

  

  The 
  species 
  described 
  in 
  the 
  Lethaea 
  Suecica, 
  Supple- 
  

   mentum, 
  1837, 
  pag. 
  113 
  — 
  114 
  are 
  the 
  following: 
  — 
  Prionotus 
  

   scalaris, 
  Pr. 
  pristis, 
  Pr. 
  sagittarius, 
  Pr. 
  convolutus 
  and 
  Pr. 
  

   folium; 
  those 
  mentioned 
  in 
  the 
  Supplementum 
  secundum, 
  

   1840, 
  are 
  Pr. 
  geminus, 
  Pr. 
  teretiiisculus 
  and 
  (under 
  the 
  name 
  

   of 
  Impressio 
  jylantae 
  Monocotyledoneae), 
  Dictyonema. 
  

  

  No. 
  1. 
  The 
  graptolite, 
  which 
  is 
  the 
  type 
  specimen 
  of 
  

   the 
  tigure 
  of 
  Prionotus 
  sccdans, 
  is 
  enclosed 
  in 
  a 
  lightgray, 
  

   hardened 
  shale 
  from 
  Mösseberg. 
  It 
  is 
  a 
  ClimacograjDtus, 
  pre- 
  

   cisely 
  identical 
  with 
  that, 
  which 
  Lapwokth 
  names 
  Climaco- 
  

   graptus 
  normalis. 
  Upon 
  the 
  same 
  slab 
  as 
  this 
  is 
  found 
  Mon. 
  

  

  ') 
  Anteckningar 
  i 
  Physik 
  och 
  Geognosi, 
  4 
  h., 
  pag. 
  168, 
  1828. 
  

  

  