﻿148 
  PROCEEDINGS 
  OF 
  THE 
  CALIFORNIA 
  

  

  Genus 
  PAVONARIA, 
  Cuvier. 
  

   Sub 
  genus 
  Verrillia, 
  Stearns. 
  

  

  Polypidoni 
  linear-elongate, 
  round, 
  oval 
  or 
  ovate 
  in 
  cross-section. 
  Axis 
  round, 
  

   slendiir, 
  bony 
  ; 
  polyps 
  arranged 
  in 
  two 
  unilateral 
  longitudinal 
  series. 
  

  

  Verrillia 
  Blake 
  i, 
  Stearns 
  ; 
  n. 
  s. 
  

  

  Polyp-mass 
  or 
  polypidom, 
  of 
  a 
  flesh 
  or 
  pink 
  color, 
  linear, 
  elongate, 
  attenuate; 
  

   polypilerous 
  portion 
  about 
  three 
  fourths 
  of 
  the 
  entire 
  length, 
  rounded 
  oval 
  to 
  

   ovate-eiliptic 
  in 
  cross 
  section, 
  and 
  from 
  three 
  fourths 
  to 
  one 
  inch 
  in 
  greatest 
  di- 
  

   ameter, 
  flatly 
  tapering 
  toward 
  the 
  tip, 
  as 
  well 
  as 
  decreasing 
  in 
  tiie 
  opposite 
  

   direction 
  to 
  where 
  the 
  polypi 
  ferous 
  rows 
  terminate 
  or 
  become 
  obsolete. 
  From 
  

   this 
  latter 
  point 
  to 
  the 
  beginning 
  of 
  the 
  base 
  or 
  root, 
  a 
  portion 
  of 
  the 
  polypi- 
  

   dom, 
  equal 
  to 
  about 
  one 
  sixth 
  of 
  its 
  entire 
  length, 
  is 
  quite 
  slender, 
  being 
  only 
  

   about 
  twice 
  the 
  diameter 
  of 
  the 
  naked 
  axis, 
  and 
  the 
  surface 
  quite 
  smooth 
  ; 
  said 
  

   portion, 
  as 
  well 
  as 
  the 
  base, 
  is 
  round 
  (in 
  cross 
  section) 
  ; 
  the 
  basal 
  part 
  is 
  from 
  

   one 
  ninth 
  to 
  one 
  eleventh 
  of 
  the 
  entire 
  length, 
  and 
  about 
  one 
  inch 
  in 
  diameter, 
  

   with 
  the 
  surface 
  longitudinally 
  wrinkled 
  or 
  contracted, 
  presenting 
  a 
  ridged 
  or 
  

   fibrous 
  appearance. 
  

  

  Style 
  or 
  axis 
  long, 
  slender, 
  white, 
  hard, 
  bony, 
  somewhat 
  polished, 
  about 
  three 
  

   sixteenths 
  (3-16) 
  of 
  an 
  inch 
  in 
  diameter 
  in 
  tlie 
  thickest 
  part, 
  tapering 
  gradually 
  

   toward 
  the 
  tip, 
  and 
  attenuated, 
  with 
  surface 
  somewhat 
  roughened 
  toward 
  the 
  

   basal 
  extremity. 
  Enclosed 
  in 
  the 
  polyp-niass 
  or 
  polypidom, 
  the 
  axis 
  is 
  central 
  

   from 
  the 
  base 
  to 
  where 
  the 
  polyp-rows 
  begin, 
  when 
  it 
  soon 
  becomes 
  marginal 
  or 
  

   lateral, 
  forming 
  a 
  prominent 
  rounded 
  edge 
  (free 
  from 
  polyps) 
  on 
  one 
  side 
  of 
  the 
  

   polypiferous 
  portion 
  of 
  the 
  whole. 
  

  

  From 
  near 
  the 
  sides 
  of 
  the 
  axial 
  edge 
  the 
  polyp-rows 
  start, 
  and 
  run 
  oblique- 
  

   ly 
  upward 
  to 
  the 
  opposite 
  side, 
  where 
  they 
  nearly 
  meet, 
  presenting, 
  when 
  that 
  

   .side 
  is 
  observed 
  from 
  above, 
  a 
  concentric 
  chevron 
  or 
  ^-like 
  arrangement, 
  modi- 
  

   fied 
  by 
  the 
  convexity 
  of 
  the 
  polypidom. 
  The 
  more 
  conspicuous 
  polyp-rows 
  

   show 
  from 
  nine 
  to 
  fourteen 
  polyps, 
  with 
  occasional 
  intermediate 
  rows 
  of 
  three 
  

   or 
  more 
  polyps. 
  

  

  The 
  length 
  of 
  the 
  most 
  perfect 
  of 
  Dr. 
  Blake's 
  specimens 
  was 
  sixty-six 
  (66) 
  

   inches 
  ; 
  of 
  which, 
  commencing 
  at 
  the 
  tip, 
  a 
  length 
  of 
  forty-eight 
  and 
  a 
  quarter 
  

   (48}^) 
  inches 
  was 
  occupied 
  by 
  the 
  polyp-rows, 
  which 
  numbered 
  two 
  hundred 
  

   and 
  forty-five 
  (245), 
  or 
  twice 
  that'number 
  when 
  both 
  sides 
  or 
  arms 
  of 
  the 
  chev- 
  

   ron 
  or 
  ^Y 
  fife 
  considered. 
  The 
  number 
  of 
  polyjjs 
  in 
  each 
  row 
  was, 
  in 
  this 
  speci- 
  

   men, 
  from 
  eight 
  (8) 
  to 
  eleven 
  (1 
  1), 
  with 
  occasional 
  intermediate 
  shorter 
  rows 
  of 
  

   from 
  three 
  (3) 
  to 
  seven 
  (7). 
  E-stimating 
  ten 
  to 
  the 
  row, 
  this 
  specimen 
  exhibited 
  

   about 
  y/ye 
  thousand 
  polyps, 
  all 
  of 
  which, 
  as 
  well 
  as 
  the 
  polyps 
  in 
  the 
  other 
  speci- 
  

   mens, 
  were 
  filled 
  with 
  ova, 
  of 
  an 
  orange 
  color. 
  In 
  the 
  next 
  section 
  of 
  this 
  spec- 
  

   imen, 
  the 
  length 
  between 
  the 
  last 
  polyp-row 
  and 
  the 
  swell 
  of 
  the 
  base 
  or 
  root, 
  is 
  

   eleven 
  and 
  one 
  quarter 
  (11^) 
  inches 
  ; 
  thence 
  to 
  the 
  termination 
  of 
  the 
  base, 
  six 
  

   (6) 
  inches. 
  

  

  