﻿DescriptionsofNeiu 
  Species 
  of 
  Mar 
  gindla, 
  Sfc. 
  225 
  

  

  species, 
  belongs 
  to 
  the 
  collection 
  of 
  Geo. 
  A. 
  Perkins, 
  M.D., 
  now 
  

   of 
  Salem, 
  Mass., 
  formerly 
  missionary 
  at 
  C. 
  Palmas, 
  by 
  whoso 
  

   kindness 
  I 
  have 
  been 
  permitted 
  to 
  describe 
  it. 
  Although 
  in 
  

   tolerably 
  good 
  condition, 
  it 
  has 
  probably 
  lost 
  the 
  original 
  

   brightness 
  of 
  its 
  enamel. 
  In 
  size 
  and 
  form 
  it 
  closely 
  ap- 
  

   proaches 
  M. 
  Belcheri 
  Hinds, 
  and 
  even 
  in 
  the 
  style 
  of 
  mark- 
  

   ing, 
  it 
  somewhat 
  resembles 
  some 
  varieties 
  of 
  that 
  species, 
  but 
  

   is 
  at 
  once 
  distinguished 
  by 
  its 
  greatly 
  thickened, 
  denticulate 
  

   and 
  dotted 
  lip. 
  In 
  its 
  thickened 
  lip 
  and 
  ventral 
  callosity 
  it 
  

   is 
  allied 
  to 
  M. 
  Petitii 
  Duval, 
  but 
  is 
  much 
  smaller, 
  and 
  quite 
  

   differently 
  marked. 
  

  

  Marginella 
  amabilis. 
  

  

  M. 
  carnea 
  (in 
  part) 
  Sowb. 
  Thes. 
  Conch., 
  p. 
  398, 
  pi. 
  70, 
  f. 
  102, 
  114, 
  

   (not'of 
  Storer.) 
  

  

  In 
  Annals 
  of 
  Lye. 
  Nat. 
  Hist., 
  vol. 
  4, 
  p. 
  495, 
  I 
  expressed 
  a 
  

   doubt 
  whether 
  the 
  figures 
  above 
  cited 
  were 
  truly 
  referable 
  to 
  

   M. 
  carnea 
  Storer. 
  I 
  have 
  since 
  become 
  convinced 
  that 
  they 
  

   are 
  not. 
  Fig. 
  103 
  of 
  the 
  same 
  plate 
  in 
  the 
  Thesaurus 
  truly 
  re- 
  

   presents 
  Storer's 
  shell, 
  but 
  Sowerby 
  erroneously 
  regarded 
  that 
  

   figure 
  as 
  a 
  variety, 
  and 
  not 
  as 
  the 
  typical 
  form, 
  and 
  hence 
  his 
  

   description, 
  which 
  is 
  well 
  worded, 
  applies 
  not 
  to 
  the 
  true 
  M. 
  

   carnea, 
  but 
  to 
  the 
  form 
  which 
  we 
  now 
  separate 
  under 
  the 
  

   above 
  name. 
  The 
  M. 
  amabilis 
  is 
  larger 
  and 
  more 
  elongate 
  

   than 
  M. 
  carnea, 
  and 
  the 
  rich 
  flesh-colored 
  tinge 
  which 
  the 
  

   back 
  of 
  the 
  shell 
  exhibits, 
  is 
  arranged 
  in 
  three 
  bands 
  in 
  the 
  

   former, 
  while 
  in 
  the 
  latter 
  only 
  two 
  are 
  evident. 
  The 
  junc- 
  

   tion 
  of 
  the 
  spire 
  and 
  lip 
  is 
  less 
  shouldered 
  in 
  M. 
  amabilis, 
  and 
  

   the 
  lip 
  is 
  usually 
  marked 
  by 
  two 
  brown 
  spots. 
  In 
  short, 
  it 
  

   is 
  as 
  closely 
  related 
  on 
  the 
  one 
  hand 
  to 
  M. 
  oblong-a 
  Swains. 
  

   as 
  it 
  is 
  to 
  M. 
  carnea 
  Storer, 
  on 
  the 
  other, 
  and 
  has 
  near 
  affini- 
  

   ties 
  also 
  to 
  M. 
  guttata 
  Dill. 
  

  

  Length, 
  0.75 
  inch, 
  (20 
  millim.) 
  Breadth, 
  0.46 
  inch, 
  (12 
  

  

  