﻿ALCYONARIA. 
  345 
  

  

  clavate 
  apex 
  2 
  millim. 
  Axis 
  flexible 
  — 
  at 
  base 
  black, 
  1 
  millim. 
  in 
  

   diameter 
  ; 
  near 
  apices 
  dark 
  brown, 
  filiform. 
  Cortex 
  compact, 
  about 
  

   •3 
  millim. 
  thick 
  on 
  branches, 
  dirty 
  white 
  in 
  colour, 
  finely 
  granulated 
  

   by 
  the 
  surface-spicules. 
  Verrucas 
  equally 
  scattered 
  over 
  all 
  sides 
  

   of 
  the 
  stem 
  and 
  branches, 
  though 
  absent 
  at 
  the 
  lower 
  end 
  of 
  the 
  

   stem, 
  about 
  '5 
  millim. 
  high 
  ; 
  monticular, 
  with 
  small 
  apical 
  opening. 
  

  

  Cortical 
  spicules 
  : 
  — 
  (i.) 
  Fusiform, 
  with 
  moderately 
  sharp 
  ends, 
  and 
  

   covered 
  with 
  large, 
  transversely 
  extended, 
  rough, 
  blunt 
  tubercles, 
  with 
  

   distinct 
  spaces 
  between 
  them, 
  irregularly 
  scattered 
  or 
  sometimes 
  

   approaching 
  a 
  whorled 
  arraugement 
  ; 
  size 
  '24 
  by 
  -087 
  millim. 
  (ii.) 
  

   Cylindro-fusiform, 
  with 
  less 
  pointed 
  ends, 
  and 
  covered 
  with 
  small, 
  

   low, 
  cylindrical 
  tubercles 
  of 
  approximately 
  imiform 
  size, 
  except 
  at 
  

   the 
  end, 
  where 
  they 
  become 
  smaller 
  and 
  almost 
  disappear 
  ; 
  size 
  '3S 
  

   by 
  •14 
  millim. 
  (iii.) 
  Pcgtop- 
  shaped, 
  with 
  the 
  broader 
  end 
  slightly 
  

   pointed 
  itself; 
  tubcrculatcd 
  in 
  same 
  way 
  as 
  (i.); 
  size 
  '28 
  by 
  "14 
  

   millim. 
  

  

  Hab. 
  Port 
  Darwin, 
  8-12 
  fms. 
  ; 
  bottom 
  mud 
  and 
  sand 
  (growing 
  

   on 
  a 
  Gorgouellid 
  stem). 
  

  

  The 
  height 
  of 
  the 
  single 
  dry 
  specimen 
  is 
  7G 
  millim. 
  (3 
  inches), 
  

   the 
  extreme 
  width 
  -23 
  millim. 
  

  

  The 
  spicules 
  of 
  this 
  species 
  have 
  tubercles 
  of 
  a 
  somewhat 
  different 
  

   character 
  from 
  those 
  figured 
  by 
  Verrill 
  for 
  most 
  of 
  his 
  species, 
  

   being 
  low 
  and 
  rough, 
  like 
  those 
  of 
  the 
  fusiforms 
  of 
  Leptogorgia 
  ; 
  but 
  

   in 
  general 
  shape 
  th(j 
  spicules 
  appear 
  to 
  agree 
  with 
  those 
  of 
  the 
  

   species 
  on 
  which 
  he 
  forms 
  the 
  genus. 
  In 
  external 
  appearance 
  the 
  

   species 
  very 
  closely 
  resembles 
  P. 
  arhuscala, 
  var. 
  j^fMlda, 
  but 
  is 
  paler 
  

   even 
  than 
  that 
  form 
  ; 
  the 
  cortical 
  spiculatiou 
  of 
  that 
  form 
  differs 
  

   from 
  that 
  of 
  our 
  species 
  in 
  having 
  the 
  spicules 
  more 
  acutely 
  tuber- 
  

   culate, 
  i. 
  e. 
  with 
  tlie 
  tubercles 
  longer 
  in 
  proportion 
  to 
  the 
  diameter 
  of 
  

   the 
  shaft 
  and 
  more 
  pointed 
  ; 
  the 
  spicules 
  are 
  also, 
  as 
  a 
  ride, 
  far 
  

   smaller 
  aU 
  over, 
  the 
  largest 
  sizes 
  given 
  by 
  Verrill 
  for 
  either 
  the 
  

   variety 
  or 
  the 
  typical 
  form 
  being 
  "264 
  millim, 
  length 
  and 
  '108 
  millim. 
  

   breadth. 
  

  

  GoRGONELLACEiE. 
  

  

  18. 
  Juncella 
  juncea, 
  Pallas. 
  

  

  Gorgonia 
  j 
  uncea, 
  Pallas, 
  Elcnch. 
  Zooph. 
  p. 
  180 
  ; 
  Esper, 
  P/lanzenth. 
  

  

  Fortsetz. 
  ii. 
  p. 
  26, 
  pi. 
  Iii. 
  

   Juncella 
  juncea, 
  KiiUiker, 
  Icon. 
  Histiol. 
  p. 
  140, 
  pi. 
  xviii. 
  figs. 
  45, 
  46; 
  

  

  ? 
  Valenciennes, 
  Comptes 
  Rendus, 
  xli. 
  p. 
  14 
  ; 
  Y 
  M.-Ed^o. 
  8f 
  Haime, 
  

  

  Hist. 
  Cor. 
  i. 
  p. 
  186 
  ; 
  Gray, 
  Cat. 
  Litlwph. 
  p. 
  25 
  ; 
  Studer, 
  MB. 
  Ak. 
  

  

  Berlin, 
  1878, 
  p. 
  659. 
  

  

  A 
  single 
  fine 
  specimen 
  of 
  typical 
  characters. 
  Neither 
  Milne- 
  

   Edwards 
  and 
  Haimc 
  nor 
  Valenciennes 
  give 
  details 
  full 
  enough 
  to 
  

   enable 
  the 
  student 
  to 
  identify 
  their 
  species 
  satisfactorily 
  with 
  that 
  

   of 
  Pallas 
  and 
  Esper. 
  In 
  the 
  ' 
  Alert 
  ' 
  s])ecimen 
  and 
  that 
  figured 
  by 
  

   Esper 
  ( 
  referred 
  to 
  by 
  M. 
  -Edwards 
  and 
  Haime) 
  the 
  verruca) 
  are 
  closely 
  

  

  