﻿art. 
  2j 
  CYCLOSTOMATOUS 
  BRYOZOA 
  CANU 
  AND 
  BASSLER 
  51 
  

  

  DIAPEROECIA 
  OKBIFERA, 
  new 
  species 
  

  

  Plate 
  8, 
  fig. 
  17 
  

  

  Description. 
  — 
  The 
  zoarium 
  is 
  subcircular; 
  it 
  incrusts 
  shells. 
  The 
  

   tubes 
  are 
  very 
  short, 
  little 
  distinct, 
  finely 
  granulated, 
  and 
  frequently 
  

   longitudinally 
  striated; 
  the 
  apertures 
  are 
  elliptical; 
  the 
  peristomes 
  

   are 
  thin, 
  very 
  close 
  together. 
  The 
  ovicell 
  is 
  large, 
  orbicular, 
  very 
  

   convex, 
  traversed 
  by 
  the 
  subjacent 
  tubes. 
  

  

  Measurements. 
  — 
  Diameter 
  of 
  aperture, 
  0.06 
  mm.; 
  diameter 
  of 
  peri- 
  

   stome, 
  0.10 
  mm.; 
  distance 
  of 
  peristomes, 
  0.40 
  mm.; 
  separation 
  of 
  

   peristomes, 
  0.40-0.48 
  mm. 
  

  

  Affinities. 
  — 
  This 
  species 
  is 
  very 
  close 
  to 
  Berenicea 
  pajpiUosa 
  Reuss 
  

   in 
  the 
  closeness 
  of 
  its 
  peristomes. 
  It 
  differs 
  from 
  it 
  in 
  its 
  ovicells, 
  

   which 
  are 
  orbicular 
  and 
  not 
  elliptical 
  and 
  very 
  elongated. 
  

  

  Occurrence. 
  — 
  Lower 
  Cretaceous 
  (Aptian) 
  : 
  Faringdon, 
  England. 
  

  

  Holotype.—C&t. 
  No. 
  69901, 
  U.S.N.M. 
  

  

  Fig. 
  24.— 
  Fasciculipora 
  flabellata 
  D'Orbigny. 
  1853. 
  A. 
  Longitudinal 
  thin 
  section, 
  X 
  16. 
  B. 
  Meridian 
  thin 
  

   section. 
  X 
  16, 
  in 
  the 
  vicinity 
  of 
  a 
  bifurcation. 
  C. 
  Zooecial 
  walls, 
  X 
  35, 
  showing 
  the 
  arrangement 
  of 
  vesicles. 
  

   Lower 
  Cretaceous 
  (Valangian): 
  Sainte-Croix, 
  Switzerland 
  

  

  Family 
  FRONDIPORIDAE 
  Busk, 
  1875 
  

  

  Genus 
  FASCICULIPORA 
  D'Orbigny, 
  1846 
  

  

  FASCICULIPORA 
  FLABELLATA 
  D'Orbigny, 
  1853 
  

  

  Plate 
  7, 
  figs. 
  1, 
  2 
  

  

  1853. 
  Fasciculipora 
  flabellata 
  D'Orbigny, 
  Paleontologie 
  f 
  ran 
  caise, 
  Terrain 
  Cr£- 
  

   tace\ 
  vol. 
  5, 
  p. 
  669, 
  pi, 
  783, 
  figs. 
  8-11. 
  

  

  D'Orbigny 
  has 
  figured 
  only 
  isolated 
  fascicles, 
  but 
  in 
  reality 
  the 
  

   zoarium 
  is 
  bushy. 
  The 
  fascicles 
  are 
  strongly 
  and 
  largely 
  attached 
  

   by 
  their 
  base; 
  they 
  are 
  very 
  irregular 
  in 
  form 
  and 
  size. 
  The 
  tubes 
  

   open 
  at 
  the 
  extremity 
  of 
  the 
  fascicles 
  and 
  often 
  laterally. 
  

  

  