﻿214 
  MARINE 
  Mt^LLLSCA 
  DESCKJBED 
  BY 
  1'. 
  I'. 
  CARPENTER 
  

  

  The 
  type 
  material 
  consists 
  of 
  seven 
  specimens 
  in 
  the 
  U. 
  S. 
  National 
  Museum, 
  labelled 
  

   "Cape 
  St. 
  Lucas 
  Xantus." 
  

  

  One 
  specimen 
  has 
  a 
  brown 
  tip 
  of 
  three 
  whorls. 
  The 
  others 
  have 
  the 
  whorls 
  white. 
  The 
  

   shells 
  are 
  partially 
  transparent, 
  and 
  some 
  have 
  a 
  few 
  light-brown 
  spots. 
  All 
  have 
  fine 
  

   longitudinal 
  ribs 
  or 
  lines. 
  One 
  specimen 
  has 
  a 
  smooth 
  body 
  whorl 
  and 
  has 
  fine 
  teeth 
  on 
  the 
  

   inside 
  of 
  the 
  labrum. 
  Other 
  individuals 
  have 
  the 
  labrum 
  smooth 
  within. 
  Some 
  specimens 
  

   show 
  a 
  band 
  below 
  the 
  sutures 
  ; 
  others 
  do 
  not 
  have 
  this 
  feature. 
  

  

  Dimensions. 
  — 
  Largest 
  syntype 
  : 
  length 
  18 
  mm.; 
  greatest 
  diameter 
  5 
  mm.; 
  syntype 
  : 
  

   length 
  6 
  mm. 
  ; 
  greatest 
  diameter 
  2 
  mm. 
  

  

  Syntypcs. 
  — 
  U. 
  S. 
  National 
  Museum, 
  No. 
  4148 
  

  

  Distribution. 
  — 
  Cape 
  San 
  Lucas, 
  Lower 
  California 
  (type) 
  ; 
  San 
  Diego, 
  California, 
  to 
  

   Panama 
  (Dall) 
  

  

  Family 
  Xassariidae 
  

   Genus 
  Nassarius 
  Dumeril, 
  1806 
  

  

  Nassarius 
  Dumeril, 
  1806, 
  Zoologie 
  Analytique, 
  p. 
  166 
  genus 
  without 
  species. 
  

  

  Type 
  species 
  by 
  monotypy 
  Froriep's 
  translation 
  of 
  Dumeril, 
  1806, 
  Anal. 
  Zool., 
  p. 
  167 
  see 
  

   Iredale, 
  1916, 
  Mai. 
  Soc. 
  London, 
  Proc, 
  vol. 
  12, 
  p. 
  83 
  B. 
  ancularia 
  [sic]. 
  Biiccimim 
  

   arcularia 
  Linnaeus, 
  1758, 
  Syst. 
  Nat., 
  10th 
  ed., 
  p. 
  737: 
  Recent. 
  Philippines. 
  Tryon, 
  1882, 
  

   Man. 
  Conch., 
  vol. 
  IV, 
  pi. 
  7, 
  figs. 
  9, 
  10 
  

  

  Nassarius 
  insculptus 
  (Carpenter) 
  

  

  Nassa 
  insculpta 
  Carpenter, 
  1864b, 
  p. 
  613, 
  616, 
  662; 
  Reprint, 
  1872, 
  p. 
  99, 
  102, 
  148; 
  1866, 
  

   California 
  Acad. 
  Nat. 
  Sci., 
  Proc, 
  IH, 
  p. 
  223; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  

   Sur. 
  California, 
  p. 
  36; 
  Tryon, 
  1882, 
  Man. 
  Conch., 
  vol. 
  IV, 
  p. 
  38, 
  Zeuxis 
  pi. 
  12, 
  fig. 
  154 
  

   identified 
  by 
  Stearns; 
  Williamson, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  15, 
  no. 
  898, 
  p. 
  212, 
  

   pi. 
  XXIII, 
  fig. 
  6 
  not 
  type 
  as 
  stated; 
  Arnold, 
  1903, 
  p. 
  233 
  

  

  Not 
  Nassa 
  insculpta 
  Carpenter, 
  Cooper, 
  1888, 
  7th 
  Ann. 
  Rept. 
  California 
  State 
  Min. 
  Bur., 
  

   p. 
  253 
  fide 
  Dall, 
  1917, 
  p. 
  576 
  

  

  Alectrion 
  insculptus 
  (Carpenter), 
  Dall, 
  1917, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  51, 
  no. 
  2166, 
  

   p. 
  576 
  

  

  Alectrion 
  (Zeuxis) 
  insculptus 
  (Carpenter), 
  Dall, 
  1921, 
  p. 
  103 
  

  

  Alectrion 
  {Schizopyga) 
  insculptus 
  (Carpenter), 
  Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  I, 
  p. 
  267, 
  pi. 
  

   26, 
  fig. 
  12 
  

  

  Nassarius 
  insculptus 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  677; 
  Burch, 
  1945, 
  no. 
  51, 
  

   p. 
  6; 
  Keen, 
  1937, 
  p. 
  41; 
  Smith 
  and 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  

   vol. 
  XXVI, 
  p. 
  187; 
  Demond, 
  1951, 
  Nautilus, 
  vol. 
  65, 
  no. 
  1, 
  p. 
  17; 
  1952, 
  Pacific 
  Science, 
  

   vol. 
  VI, 
  no. 
  4, 
  p. 
  312, 
  pi. 
  II, 
  fig. 
  3, 
  eupleura 
  fig. 
  1 
  ; 
  Abbott, 
  1954, 
  p. 
  237, 
  fig. 
  53f 
  same 
  

   fig. 
  as 
  Williamson, 
  1892 
  

  

  Nassarius 
  (Zeuxi.<;) 
  insculptus 
  (Carpenter), 
  Baily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  

   p. 
  229, 
  fig. 
  221 
  same 
  as 
  Williamson, 
  1892 
  

  

  "Cat. 
  Is., 
  living 
  in 
  40 
  fm., 
  rare" 
  [Carpenter, 
  1864b, 
  p. 
  613] 
  

  

  "Zeuxis, 
  with 
  varix 
  and 
  non-reflexed 
  callus. 
  Spirally 
  grooved. 
  40 
  fm. 
  living, 
  r. 
  Cp." 
  

   [Carpenter, 
  1864b, 
  p. 
  662] 
  

  

  The 
  description 
  of 
  1865 
  of 
  this 
  species 
  was 
  republished 
  by 
  Oldroyd 
  (1927). 
  The 
  follow- 
  

   ing 
  notes 
  should 
  be 
  added 
  to 
  make 
  that 
  copy 
  complete 
  : 
  

  

  Delete 
  "mm." 
  

  

  Add: 
  

  

  ". 
  . 
  . 
  State 
  Collection 
  1008. 
  

  

  ''. 
  . 
  . 
  div. 
  45°. 
  

  

  "Hab. 
  Catalina 
  Insland, 
  30-40 
  fm. 
  ; 
  15 
  mostly 
  alive, 
  but 
  few 
  mature; 
  animal 
  white; 
  

   Cooper. 
  

  

  "This 
  singularly 
  beautiful 
  species 
  probably 
  belongs 
  to 
  the 
  section 
  Zeuxis, 
  H. 
  & 
  A. 
  Adams. 
  

   The 
  callus 
  is 
  slightly 
  reflexed 
  in 
  the 
  best 
  specimen." 
  [Carpenter, 
  1866a, 
  p. 
  223] 
  

  

  Although 
  the 
  explanation 
  of 
  the 
  figure 
  of 
  tliis 
  species 
  given 
  in 
  Williamson 
  stipulated 
  

   "Type 
  specimen 
  46625," 
  the 
  label 
  with 
  the 
  specimen 
  in 
  the 
  U. 
  S. 
  National 
  Museum 
  no. 
  46625 
  

   does 
  not 
  so 
  indicate. 
  It 
  reads 
  "San 
  Pedro 
  Stearns 
  Coll." 
  The 
  original 
  material 
  was 
  collected 
  

   by 
  Cooper 
  and 
  belonged 
  to 
  the 
  California 
  State 
  Collection, 
  so 
  that 
  tlie 
  Stearns 
  shells 
  could 
  

   not 
  be 
  types. 
  

  

  