﻿776 
  

  

  PBOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  Ill 
  order 
  to 
  avoid, 
  so 
  far 
  as 
  possible, 
  the 
  uncertainty 
  necessarily 
  

   connected 
  with 
  mere 
  descriptions 
  of 
  these 
  forms, 
  we 
  have 
  had 
  large 
  

   camera-lucida 
  figures 
  made, 
  as 
  carefully 
  as 
  possible, 
  not 
  only 
  of 
  the 
  

   new 
  species, 
  but 
  also 
  of 
  some 
  of 
  those 
  previously 
  described 
  from 
  our 
  

   coast, 
  for 
  comparison. 
  It 
  is, 
  therefore, 
  to 
  be 
  hoped 
  that 
  future 
  investi- 
  

   gators 
  may 
  at 
  least 
  be 
  able 
  to 
  understand 
  the 
  characters 
  of 
  the 
  species 
  

   now 
  recognized 
  by 
  us, 
  whether 
  they 
  agree 
  with 
  our 
  determinations 
  or 
  

   not. 
  

  

  Although 
  the 
  collections 
  studied 
  are 
  unusually 
  extensive, 
  and 
  the 
  

   number 
  of 
  stations 
  represented 
  is 
  very 
  large, 
  it 
  is 
  noteworthy 
  that 
  a 
  

   considerable 
  number 
  of 
  species 
  were 
  met 
  with 
  but 
  once, 
  and 
  sometimes 
  

   only 
  a 
  single 
  specimen 
  was 
  obtained. 
  This 
  indicates 
  that 
  many 
  addi- 
  

   tional 
  species 
  of 
  such 
  small 
  deep-sea 
  shells 
  would 
  be 
  discovered 
  in 
  the 
  

   same 
  region 
  if 
  additional 
  dredgings 
  should 
  be 
  made. 
  

  

  Our 
  investigations 
  have 
  enabled 
  us 
  to 
  add 
  to 
  the 
  fauna 
  nine 
  genera, 
  

   four 
  subgenera, 
  and 
  about 
  eighty 
  species 
  and 
  varieties, 
  of 
  which 
  about 
  

   seventy 
  are 
  described 
  as 
  new 
  species 
  and 
  seven 
  as 
  new 
  varieties; 
  of 
  

   these, 
  twelve 
  si)ecies 
  and 
  one 
  variety 
  belong 
  to 
  the 
  southern 
  fsiuna. 
  

  

  The 
  following 
  list 
  shows 
  the 
  genera 
  in 
  which 
  the 
  new 
  species 
  and 
  

   varieties 
  are 
  included.' 
  The 
  new 
  genera 
  are 
  printed 
  in 
  italic: 
  

  

  Martesiella, 
  1. 
  

   Abra, 
  var. 
  1. 
  

   Macoma, 
  1 
  

   Moutacuta, 
  4, 
  var. 
  2. 
  

   EeUiopsis. 
  

  

  Cryptodon, 
  4, 
  var. 
  1. 
  

   AxinnJiis, 
  6. 
  

   Axiuopsis, 
  1, 
  var. 
  1. 
  

   Axinodon, 
  1. 
  

   Leptaxinus, 
  1. 
  

   Cuspidaria, 
  8. 
  

   Cardiomya, 
  2. 
  

   Ilalonympha, 
  1. 
  

   Myonera, 
  3. 
  

  

  Poromya, 
  var. 
  1. 
  

   Cetocoucha, 
  2. 
  

   Cetoinya, 
  1. 
  

   Lyousiella, 
  2. 
  

   Lyonsia, 
  1. 
  

   Clidiophora, 
  1. 
  

   Keunerlia, 
  1. 
  

   Periploma, 
  1. 
  

   Limattila, 
  3. 
  

   Chlaniys, 
  2. 
  

   Hyalopecteu, 
  1. 
  

   Camptonectes, 
  1. 
  

   Cyclopecteu, 
  2. 
  

  

  Bathyarca, 
  2. 
  

   Bvntharca. 
  

   Liuiopsis, 
  2. 
  

   Soleuiya, 
  1. 
  

   Nucula, 
  1, 
  var. 
  1. 
  

   Leda, 
  1. 
  

  

  Ledella, 
  1, 
  var. 
  1. 
  

   AdrancUa, 
  1. 
  

   Microyoldia. 
  

   Yoldiclla, 
  11, 
  var. 
  1. 
  

   Malletia, 
  2. 
  

   Neilonella, 
  1. 
  

   Tindaria, 
  3. 
  

  

  No 
  attempt 
  has 
  been 
  made 
  to 
  give 
  the 
  complete 
  synonymy 
  and 
  

   details 
  of 
  the 
  distribution. 
  Such 
  matters 
  have 
  been 
  reserved 
  for 
  the 
  

   final 
  report 
  on 
  the 
  collections. 
  

  

  Unless 
  otherwise 
  stated, 
  the 
  station 
  numbers 
  are 
  those 
  of 
  the 
  

   United 
  States 
  Fish 
  Commission 
  and 
  the 
  serial 
  numbers 
  are 
  those 
  of 
  

   the 
  United 
  States 
  National 
  Museum. 
  

  

  The 
  drawings, 
  with 
  few 
  exceptions, 
  were 
  made 
  by 
  Mr. 
  Alpheus 
  H. 
  

   Verrill, 
  under 
  the 
  immediate 
  supervision 
  of 
  the 
  authors. 
  

  

  Peahody 
  Museum 
  of 
  Yale 
  University, 
  New 
  Haven, 
  Connecticut, 
  January 
  25, 
  1897. 
  

  

  'Owing 
  to 
  the 
  long 
  delay 
  in 
  the 
  pnhlieation 
  of 
  this 
  article, 
  some 
  of 
  the 
  new 
  

   species 
  and 
  genera 
  have 
  been 
  published 
  elsewhere, 
  so 
  that 
  these 
  numbers 
  are 
  not 
  

   now 
  strictly 
  correct. 
  

  

  