﻿352 
  COLLECTIONS 
  FROM 
  MELANESIA. 
  

  

  at 
  the 
  ends 
  ; 
  a 
  few 
  small 
  low 
  tubercles 
  at 
  the 
  ends 
  and 
  here 
  and 
  

   there 
  on 
  the 
  body 
  of 
  the 
  spicule 
  ; 
  size 
  "18 
  by 
  -03 
  millim, 
  (near 
  apex 
  

   of 
  branches 
  only 
  about 
  '018 
  millim, 
  broad 
  and 
  with 
  longer 
  sharp 
  

   tubercles). 
  Spicules 
  of 
  cortex 
  (iii.) 
  short, 
  fusiform, 
  with 
  ridge-like, 
  

   transversely 
  elongated 
  tubercles, 
  much 
  roughened 
  ; 
  ends 
  of 
  spicules 
  

   irregular 
  in 
  shape 
  ; 
  size 
  about 
  "018 
  to 
  -022 
  by 
  •! 
  millim. 
  

  

  Hah. 
  Torres 
  Straits, 
  10 
  fms. 
  ; 
  bottom 
  sand. 
  

  

  Ohs. 
  This 
  species 
  appears 
  to 
  belong 
  to 
  the 
  genus 
  established 
  by 
  

   Duchassaing 
  de 
  Fonbressin 
  {I. 
  o.), 
  but 
  differs 
  from 
  the 
  description 
  of 
  

   the 
  single 
  species, 
  /. 
  schrammi, 
  there 
  described 
  (from 
  Guadaloupe) 
  in 
  

   the 
  verruca) 
  not 
  projecting 
  from 
  the 
  general 
  level 
  of 
  the 
  cortex. 
  The 
  

   height 
  of 
  the 
  single 
  specimen 
  is 
  250 
  millim. 
  (10 
  inches), 
  greatest 
  dia- 
  

   meter 
  at 
  basal 
  cud 
  9 
  millim., 
  least 
  diameter 
  at 
  same 
  place 
  4^ 
  millim. 
  ; 
  

   greatest 
  diameter 
  at 
  apex 
  of 
  branches 
  4| 
  millim. 
  ; 
  common 
  stem 
  

   100 
  millim. 
  long 
  ; 
  longest 
  branch 
  150 
  millim. 
  ; 
  it 
  branches 
  only 
  

   once, 
  but 
  oue 
  other 
  (aborted) 
  branch 
  is 
  indicated 
  on 
  one 
  edge 
  of 
  the 
  

   stem 
  of 
  another 
  of 
  the 
  branches. 
  

  

  SIPHONOGORGIA. 
  

  

  Kdlliker^ 
  Festschrift 
  phys.-med. 
  Ges. 
  Wiirzhurg, 
  1874, 
  p. 
  18. 
  

  

  Three 
  species 
  of 
  this 
  highly 
  interesting 
  and 
  but 
  recently 
  dis- 
  

   covered 
  type 
  are 
  already 
  known, 
  viz. 
  S. 
  (lodeffroyi, 
  Kolliker 
  (Z, 
  c), 
  

   from 
  the 
  Pelew 
  Islands 
  ; 
  S. 
  mirabilis, 
  Klunzinger, 
  from 
  the 
  lied 
  Sea 
  ; 
  

   and 
  S. 
  sqaarrosa, 
  Studer, 
  from 
  N.W. 
  Australia. 
  A 
  species 
  occurs 
  

   in 
  the 
  present 
  collection 
  which 
  though 
  differing 
  more 
  or 
  less 
  from 
  

   all 
  these 
  either 
  in 
  its 
  spicules 
  or 
  external 
  characters, 
  yet 
  agrees 
  

   suflficieully 
  closely 
  in 
  its 
  sjiicular 
  characters 
  and 
  general 
  form 
  with 
  

   Klunzinger's 
  species 
  for 
  me 
  to 
  record 
  it 
  under 
  the 
  name 
  

  

  29. 
  Siphonogorgia 
  mirabilis, 
  var. 
  flava. 
  

  

  Siphonogorgia 
  mirabilis, 
  Khmzinger, 
  Kor. 
  roth. 
  Mecr. 
  i. 
  p. 
  40 
  pi. 
  iii. 
  

   fig. 
  9. 
  

  

  Two 
  groups 
  growing 
  on 
  tubular 
  masses 
  of 
  sponge 
  or 
  worm-tube, 
  

   and 
  consisting 
  of 
  a 
  creeping, 
  thin, 
  adherent 
  stolon, 
  1-0 
  to 
  5 
  millim. 
  

   broad, 
  bearing 
  the 
  monticular 
  closed 
  verrucae, 
  1 
  to 
  1-5 
  millim. 
  in 
  

   diameter, 
  and 
  sending 
  up 
  vertical 
  shoots 
  at 
  intervals 
  of 
  from 
  6 
  to 
  

   10 
  millim. 
  ; 
  these 
  are 
  unbranched, 
  from 
  9 
  to 
  34 
  millim. 
  in 
  height 
  

   and 
  from 
  1-5 
  to 
  2-5 
  millim. 
  in 
  their 
  greatest 
  by 
  1 
  millim. 
  in 
  their 
  

   least 
  diameter, 
  being 
  somewhat 
  flattened, 
  knifcOike 
  ; 
  they 
  have 
  

   slightly 
  swollen 
  but 
  pointed 
  apices. 
  The 
  colour 
  in 
  spirit 
  is 
  a 
  light 
  

   yellowish 
  brown 
  throughout. 
  The 
  verrucae 
  are 
  closed, 
  but 
  the 
  

   polypes 
  are 
  seen 
  by 
  sections 
  to 
  have 
  a 
  yellow 
  colour. 
  

  

  The 
  parenchyma-spicules 
  agree 
  in 
  their 
  general 
  characters 
  with 
  

   those 
  described 
  by 
  Klunzinger; 
  but 
  I 
  find(i.) 
  those 
  of 
  the 
  cortical 
  layer 
  

   having 
  cither 
  the 
  characters 
  exhibited 
  in 
  the 
  lowest 
  of 
  the 
  figures 
  

   marked 
  (/ 
  in 
  his 
  fig. 
  9. 
  pi. 
  iii 
  (/. 
  o.), 
  viz. 
  stout 
  fusiform 
  with 
  rather 
  dis- 
  

   tinct 
  broad 
  minutely 
  tuberculate 
  tubercles, 
  size 
  -21 
  by 
  -085 
  millim. 
  to 
  

  

  