﻿1066 
  FORTT-SBVENIH 
  REPORT 
  ON 
  THE 
  STATE 
  MUbEUM. 
  

  

  Shell-substance 
  highly 
  punctated 
  in 
  all 
  its 
  parts. 
  

   Type, 
  Trqpidoleptus 
  carinatus, 
  Conrad 
  (sp.). 
  

   Distribution; 
  Lower 
  and 
  middle 
  Devonian. 
  

  

  Note. 
  — 
  In 
  the 
  treatment 
  of 
  the 
  post-palaeozoic 
  genera 
  of 
  the 
  

   terebratuloids 
  it 
  has 
  seemed 
  necessary 
  and 
  appropriate 
  to 
  defer 
  

   to 
  the 
  opinions 
  of 
  other 
  authors, 
  and 
  therefore 
  desirable, 
  at 
  least 
  

   for 
  the 
  purposes 
  of 
  the 
  American 
  student, 
  to 
  consider 
  them 
  sepa- 
  

   rately 
  from 
  the 
  palaeozoic 
  genera, 
  following 
  in 
  a 
  general 
  way 
  

   the 
  accepted 
  interpretation 
  of 
  their 
  affinities, 
  but 
  not 
  often 
  

   expressing 
  a 
  judgment 
  as 
  to 
  the 
  generic 
  value 
  of 
  their 
  characters. 
  

  

  [?] 
  Cruratula, 
  Bittner. 
  1890. 
  

  

  MAGELLANiA-like 
  shells, 
  with 
  median 
  septum 
  in 
  the 
  brachial 
  

   valve, 
  punctate 
  shell, 
  but 
  with 
  the 
  lateral 
  or 
  descending 
  branches 
  

   of 
  the 
  loop 
  not 
  united, 
  so 
  far 
  as 
  known. 
  

  

  Figs. 
  516, 
  517. 
  Cruratula 
  Eudora, 
  Laube 
  (sp.). 
  (Bittner.) 
  

  

  Type, 
  Cruratula 
  Hudora, 
  Laube 
  (sp.). 
  

   Distribution. 
  Trias. 
  

  

  Terebratulina, 
  d'Orbigny. 
  1847. 
  

  

  Shells 
  biconvex 
  ; 
  ovate 
  in 
  outline. 
  Cardinal 
  extremities 
  faintly 
  

   auriculate. 
  Beak 
  of 
  pedicle-valve 
  trunctated 
  by 
  a 
  circular 
  

   foramen 
  ; 
  deltidial 
  plates 
  small. 
  Surface 
  finally 
  radiate. 
  Interior 
  

  

  124 
  

  

  