﻿ABSTRACT 
  

  

  Philip 
  P. 
  Carpenter 
  ranks 
  next 
  to 
  W. 
  H. 
  Dall 
  and 
  Paul 
  Bartsch 
  in 
  the 
  num- 
  

   ber 
  of 
  marine 
  molluscan 
  species 
  described 
  from 
  the 
  West 
  Coast, 
  San 
  Diego 
  to 
  

   British 
  Columbia. 
  More 
  than 
  270 
  Carpenter 
  species, 
  fossil 
  and 
  Recent, 
  and 
  many 
  

   more 
  names 
  are 
  involved 
  in 
  the 
  present 
  study. 
  Illustrations 
  of 
  more 
  than 
  190 
  

   types 
  and 
  of 
  many 
  original 
  specimens 
  with 
  pertinent 
  data 
  are 
  included. 
  Only 
  4 
  of 
  

   about 
  50 
  pelecypod 
  species 
  and 
  only 
  about 
  one-fifth 
  of 
  the 
  t}'pes 
  of 
  the 
  gastropods 
  

   have 
  had 
  the 
  types 
  figured 
  previously. 
  Authentic 
  whereabouts 
  of 
  the 
  types 
  have 
  

   been 
  determined, 
  lists 
  regarding 
  depositories 
  of 
  types, 
  type 
  localities, 
  evaluation 
  

   of 
  names, 
  analysis 
  of 
  available 
  Carpenter 
  material, 
  and 
  historical 
  background 
  

   have 
  been 
  included. 
  IJecause 
  Carpenter 
  was 
  one 
  of 
  the 
  important 
  figures 
  in 
  early 
  

   American 
  conchology, 
  the 
  historical 
  background 
  presents 
  a 
  partial 
  picture 
  of 
  that 
  

   time 
  (ca. 
  1841-1870). 
  The 
  fossil 
  distribution 
  of 
  each 
  Recent 
  species 
  where 
  known 
  

   is 
  included. 
  A 
  stratigraphic 
  distributional 
  chart 
  is 
  inserted. 
  This 
  reveals 
  the 
  re- 
  

   lationship 
  between 
  the 
  fauna 
  of 
  the 
  Miocene, 
  Pliocene, 
  Pleistocene, 
  and 
  Recent 
  

   species 
  of 
  the 
  area 
  studied. 
  The 
  importance 
  of 
  the 
  illustration 
  of 
  the 
  large 
  number 
  

   of 
  heretofore 
  unfigured 
  types 
  of 
  common 
  species, 
  fossil 
  and 
  Recent, 
  may 
  be 
  re- 
  

   flected 
  in 
  more 
  refined 
  taxonomic. 
  ecological 
  and 
  paleoecological, 
  statistical, 
  and 
  

   distributional 
  studies 
  of 
  the 
  late 
  Cenozoic 
  mollusks. 
  

  

  