﻿I! 
  

  

  ing 
  in 
  a 
  prolonged 
  point. 
  The 
  pectorals 
  are 
  falciform, 
  the 
  

   length 
  of 
  their 
  lower 
  margin 
  being 
  one-fourth 
  of 
  that 
  of 
  the 
  

   upper. 
  Yentrals 
  quadrilateral 
  ; 
  the 
  anal 
  fin 
  is 
  small, 
  similar 
  

   in 
  shape 
  to 
  the 
  second 
  dorsal 
  and 
  sligtlj 
  posterior 
  to 
  it. 
  The 
  

   caudal 
  fin 
  is 
  deeply 
  lunate, 
  with 
  slightly 
  unequal 
  lobes. 
  On 
  

   each 
  side 
  of 
  the 
  tail 
  is 
  a 
  carina, 
  highest; 
  in 
  the 
  middle 
  ; 
  a 
  

   deep 
  dentation 
  occurs 
  on 
  the 
  upper 
  and 
  lower 
  sides 
  of 
  the 
  

   tail. 
  When 
  first 
  taken 
  from 
  the 
  water, 
  the 
  color 
  of 
  this 
  fish 
  

   is 
  deep 
  green, 
  which 
  soon 
  changes 
  into 
  a 
  uniform 
  dark 
  slate, 
  

   lighter 
  beneath. 
  Length 
  : 
  5 
  to 
  10 
  feet. 
  

  

  Lamna 
  punctata, 
  Storer, 
  Bost. 
  Jour. 
  Nat. 
  Hist. 
  I, 
  1839, 
  p. 
  

   534, 
  pi. 
  8, 
  fig. 
  2 
  ; 
  DeKay, 
  New 
  York 
  Faun., 
  Fish, 
  p. 
  352, 
  pi. 
  

   63, 
  figs. 
  206 
  and 
  207. 
  

  

  Oxyrhina 
  gompJiodon, 
  Mull, 
  and 
  Henle, 
  p. 
  68, 
  pi. 
  28. 
  

  

  Isuropsis 
  DeKay!, 
  Gill, 
  Ann. 
  Lye. 
  Nat. 
  Hist. 
  New 
  York, 
  

   Vir, 
  p. 
  409. 
  

  

  A 
  common 
  fish 
  along 
  the 
  coast 
  of 
  Worcester 
  county 
  dur- 
  

   ing 
  the 
  summer. 
  

  

  Acad. 
  Collection. 
  

  

  