﻿the 
  Gulf 
  of 
  Manaar. 
  75 
  

  

  Pachychalina 
  multiformis, 
  Lendenfeld, 
  sp., 
  var. 
  manaar- 
  

   ensis, 
  nov. 
  Pale 
  violet 
  or 
  light 
  pink. 
  

  

  delicatula, 
  n. 
  sp. 
  (No 
  colour 
  recorded.) 
  

  

  spinilamella, 
  n. 
  sp. 
  Pale 
  yellow. 
  

  

  Siphonochalina 
  communis 
  , 
  Carter, 
  sp. 
  Bluish 
  brown. 
  

  

  crassijibra, 
  n. 
  sp. 
  Deep 
  blue. 
  

  

  Gelliodes 
  carnosa, 
  n. 
  sp. 
  Grey. 
  

  

  lotrochota 
  baculifera, 
  Ridley, 
  var. 
  flabellata, 
  Dendy. 
  

   Black 
  (in 
  spirit 
  or 
  when 
  dry 
  dark 
  purple). 
  

  

  Clathria 
  indica, 
  n. 
  sp. 
  Bright 
  red. 
  

  

  corattiiincta, 
  n. 
  sp. 
  Coral-red. 
  

  

  Rhap/iidop/ihis 
  spiculosus, 
  n. 
  sp. 
  Vermilion. 
  

  

  Hymeniacidon'l 
  fcetida, 
  n. 
  sp. 
  Grey. 
  

  

  Axinella 
  labyrinthica, 
  n. 
  sp. 
  Bright 
  orange. 
  

  

  Dormant, 
  Bowerbank, 
  sp. 
  Orange. 
  

  

  tubulata, 
  Bowerbank, 
  sp. 
  Pinkish 
  red 
  or 
  red. 
  

  

  Ciocalypta 
  Tyleri, 
  Bowerbank, 
  var. 
  manaarensis, 
  nov. 
  

   White. 
  

  

  Auletta 
  aurantiaca, 
  n. 
  sp. 
  Bright 
  orange. 
  

  

  Acanthella 
  Carteri, 
  n. 
  sp. 
  Orange-red. 
  

  

  Cekatosa. 
  

  

  Spongionella 
  nigra, 
  n. 
  sp. 
  Black. 
  

   Hircinia 
  clathrata, 
  Carter. 
  Reddish 
  brown. 
  

  

  ? 
  sp. 
  Blackish 
  grey. 
  

  

  Aplysina 
  purpurea, 
  Carter. 
  Grey 
  (in 
  spirit, 
  or, 
  when 
  

  

  dry, 
  dark 
  purple). 
  

   fusca, 
  Carter. 
  (No 
  colour 
  recorded.) 
  

  

  Specimens 
  of 
  all 
  these 
  species, 
  which 
  I 
  shall 
  now 
  describe, 
  

   are 
  in 
  the 
  British 
  Museum, 
  South 
  Kensington. 
  The 
  spicular 
  

   terminology 
  here 
  employed 
  is 
  that 
  given 
  in 
  the 
  ' 
  Challenger 
  ' 
  

   Reports 
  on 
  Monaxonida 
  and 
  Tetractinellida. 
  

  

  TETRACTINELLIDA. 
  

  

  Tetilla 
  hirsuta, 
  n. 
  sp. 
  

  

  This 
  species 
  is 
  represented 
  in 
  the 
  collection 
  by 
  two 
  good 
  

   specimens, 
  each 
  of 
  which 
  is 
  spherical 
  and 
  attached 
  to 
  a 
  stone 
  

   by 
  the 
  base. 
  The 
  larger 
  of 
  the 
  two 
  specimens 
  is 
  40 
  or 
  50 
  

   millim. 
  in 
  diameter. 
  There 
  is 
  no 
  record 
  of 
  the 
  colour 
  of 
  the 
  

   sponge 
  in 
  the 
  living 
  state, 
  but 
  in 
  spirit 
  the 
  specimens 
  are 
  

   dark 
  grey, 
  almost 
  black. 
  The 
  surface 
  of 
  the 
  sponge 
  is 
  hir- 
  

   sute, 
  owing 
  to 
  the 
  presence 
  of 
  long 
  spicules 
  projecting 
  out- 
  

   wards 
  and 
  downwards 
  in 
  a 
  thatch-like 
  manner. 
  The 
  con- 
  

  

  6* 
  

  

  