﻿Acad. 
  Collection 
  signifies 
  that 
  specimens 
  are 
  in 
  the 
  

   Maryland 
  Academy 
  of 
  Sciences. 
  

  

  Fins. 
  — 
  D. 
  I'orsal, 
  i 
  e., 
  on 
  the 
  back; 
  sometimes 
  two 
  in 
  

   number. 
  

  

  P. 
  Pectoral 
  ; 
  attached 
  behind 
  the 
  gill-covers. 
  

  

  V. 
  Ventral 
  ; 
  attached 
  to 
  the 
  lower 
  side 
  in 
  front. 
  

  

  A. 
  Anal 
  ; 
  attached 
  to 
  the 
  holly 
  near 
  the 
  vent. 
  

  

  C. 
  Caudal 
  ; 
  the 
  tail 
  fin. 
  

  

  