A Conch Form
Max. diameter: 22   Diameter: 20   Whorl width: 10.5   Whorl height: 6  
Umbilicus: 6.5   Aperture height: 0  
General:
    ts
  Aperturally:
    dl
  Outline of venter:
    r
  Special form of v.:
    no
 
Flanks:
    cx
  Umbilical width:
    wm
  Umbilical edge:
    ro
 
B Growth Lines
Pattern:
     
  Direction:
     
  Overall course:
     
  Ventrolat. salient:
     
 
Course on venter:
     
 
C Ribs and Nodes
Ribs,Nodes/whorl:
    th
  Form of ribs:
    im
  Pattern:
    cr
  Position of ribs:
    fl
 
Direction:
    re
  Course:
    li
  Form of nodes:
    sp
  Position of nodes:
    vl
 
D Constrictions
Constr./whorl:
    cv
  Form:
     
  Pattern:
     
  Position:
     
 
E Grooves
Number:
    no
 
F Spirals
Number:
    th
  Form:
    si
  Strength:
    st
  Position:
    en
 
G Suture
(1) Ventral lobe: di         If simple:           If div., height of median saddle:    
      Form of ventral lobe: mh         Form of ventral prong: po  
(2) Ventrolateral saddle: sy         Outline: ro  
(3) First lateral lobe: sy         Outline: dp         Width v. lobe/Width 1st lat. lobe: wi  
(4) Following saddles: ro   (5) Add. lobes on flanks: ac   (6) Number of add. lobes: th  
(7) Form of dorsal lobe: sa   Sutural elements: Em E1 A Lv