﻿80 
  PROCEEDINGS 
  OF 
  THE 
  CALIFORNIA 
  

  

  rounded 
  ribs 
  of 
  more 
  or 
  less 
  prominence 
  ; 
  aperture 
  ovate, 
  about 
  one-half 
  the 
  

   length 
  of 
  the 
  shell, 
  polished, 
  white 
  and 
  finely 
  ribbed 
  within 
  ; 
  (the 
  outer 
  lip 
  in 
  

   perfect 
  specimens 
  is 
  probably 
  finely 
  crenulated) 
  ; 
  canal 
  short, 
  nearly 
  straight. 
  

   Lon. 
  2.1 
  ; 
  lat, 
  ,94 
  in. 
  Number 
  of 
  specimens, 
  three 
  ; 
  two 
  mature, 
  dead, 
  one 
  

   junior, 
  fresh. 
  

  

  Habitat. 
  — 
  Coast 
  of 
  Mendocino 
  County, 
  near 
  Big 
  Spanish 
  Flat, 
  California, 
  

   where 
  it 
  was 
  detected 
  by 
  Mr. 
  Harford. 
  

  

  Though 
  almost 
  typically 
  fusiform, 
  except 
  in 
  the 
  brevity 
  of 
  the 
  canal, 
  I 
  am 
  

   disposed 
  to 
  place 
  it 
  in 
  Chrysodomus 
  rather 
  than 
  with 
  Fusus. 
  Dr. 
  Carpenter 
  is 
  

   inclined 
  to 
  believe 
  that 
  certain 
  specimens 
  collected 
  at 
  Monterey 
  by 
  the 
  late 
  Dr. 
  

   0. 
  A. 
  Canfield 
  and 
  at 
  Catalina 
  Island 
  by 
  Dr. 
  Cooper, 
  are 
  identical 
  with 
  the 
  

   above. 
  I 
  am 
  of 
  the 
  opinion 
  that 
  it 
  is 
  rather 
  a 
  northern 
  form, 
  exceedingly 
  local 
  

   in 
  its 
  distribution 
  and 
  more 
  nearly 
  allied 
  to 
  some 
  of 
  the 
  later 
  fossils 
  of 
  the 
  coast 
  

   described 
  by 
  Mr. 
  Gabb. 
  

  

  Pleurotoma 
  (Drillia) 
  Montereyensis, 
  Stearns. 
  Plate 
  I, 
  fig. 
  2, 
  

  

  P. 
  (D.) 
  Montereyensis, 
  Stearns. 
  Prel. 
  Descr. 
  August 
  28, 
  1871. 
  

  

  Shell 
  small, 
  rather 
  solid, 
  elongate, 
  slender 
  ; 
  spire 
  elevated, 
  sub-acute 
  ; 
  whorls, 
  

   seven 
  to 
  eight 
  moderately 
  rounded 
  ; 
  upper 
  portion 
  of 
  larger 
  volutions 
  somewhat 
  

   concavely 
  angulated 
  ; 
  suture 
  distinct 
  ; 
  color, 
  dark 
  purplish 
  brown 
  or 
  black 
  ; 
  sur- 
  

   face 
  covered 
  with 
  rather 
  coarse, 
  inconspicuous, 
  revolving 
  costae, 
  interrupted 
  on 
  

   the 
  body 
  whorl 
  by 
  rude 
  incremental 
  lines 
  ; 
  middle 
  of 
  upper 
  whorls 
  and 
  upper 
  

   part 
  of 
  body 
  whorl 
  displaying 
  fourteen 
  to 
  fifteen 
  equidistant, 
  longitudinal, 
  no- 
  

   dose, 
  slightly 
  oblique 
  ribs, 
  which 
  are 
  whitish 
  in 
  the 
  specimen 
  before 
  me 
  (being 
  

   somewhat 
  rubbed) 
  on 
  the 
  larger 
  whorls 
  ; 
  on 
  the 
  smaller 
  volutions 
  of 
  the 
  spire 
  a 
  

   puckering 
  at 
  and 
  following 
  the 
  suture 
  suggests 
  a 
  second 
  indistinct 
  series 
  of 
  no- 
  

   dules 
  ; 
  aperture 
  less 
  than 
  half 
  the 
  length 
  of 
  the 
  shell 
  ; 
  canal 
  short 
  ; 
  terminal 
  por- 
  

   tion 
  of 
  columella 
  whitish, 
  slightly 
  twisted 
  ; 
  posterior 
  sinus, 
  rather 
  broad 
  rounded, 
  

   and 
  of 
  moderate 
  depth. 
  Long. 
  .67 
  in.; 
  lat. 
  .24 
  in. 
  

  

  . 
  Habitat. 
  — 
  Monterey, 
  California, 
  where 
  the 
  single 
  specimen 
  in 
  my 
  cabinet 
  

   was 
  collected 
  by 
  Mr. 
  Harford 
  and 
  myself 
  in 
  March, 
  1868. 
  The 
  shell, 
  in 
  its 
  

   general 
  aspect, 
  resembles 
  the 
  sombre 
  colored 
  species 
  of 
  the 
  Gulf 
  of 
  California 
  

   and 
  Panama. 
  

  

  In 
  the 
  cabinet 
  of 
  the 
  Rev. 
  J. 
  Howell 
  is 
  a 
  specimen 
  perhaps 
  of 
  this 
  species, 
  

   but 
  not 
  in 
  sufficiently 
  perfect 
  condition 
  to 
  admit 
  of 
  certainty. 
  

  

  Pleurotoma 
  (Drillia) 
  Hemphillii, 
  Stearns. 
  Plate 
  I, 
  fig. 
  3. 
  

  

  P. 
  (D.) 
  HempJnllii, 
  Stearns, 
  Prel. 
  Descr. 
  August 
  28, 
  1871. 
  

  

  Shell 
  small, 
  smooth, 
  slender, 
  polished 
  ; 
  spire 
  long, 
  subacute, 
  rounded 
  at 
  apex 
  ; 
  

   longitudinally 
  marked 
  with 
  inconspicuous, 
  oblique 
  ribs, 
  which 
  are 
  nearly 
  obso- 
  

   lete 
  on 
  the 
  body 
  whorl 
  ; 
  number 
  of 
  whorls 
  seven, 
  with 
  well 
  defined 
  sutural 
  line, 
  

   and 
  just 
  below 
  it 
  a 
  parallel 
  impressed 
  thread-like 
  line 
  ; 
  shell 
  of 
  an 
  opaque 
  dingy 
  

   horn 
  color 
  ; 
  incremental 
  lines 
  fine, 
  marked 
  in 
  some 
  specimens 
  with 
  dingy 
  white 
  ; 
  

   mouth 
  obliquely 
  ovate, 
  about 
  one-third 
  the 
  length 
  of 
  the 
  shell 
  ; 
  labrum 
  pro- 
  

   duced, 
  anteriorly 
  somewhat 
  thickened 
  ; 
  sinus 
  sutural, 
  deep, 
  calloused 
  ; 
  columella 
  

   thickened 
  at 
  base 
  ; 
  canal 
  very 
  short, 
  somewhat 
  produced 
  and 
  twisted 
  ; 
  one 
  spec- 
  

  

  