A Conch Form
Max. diameter: 40   Diameter: 33.5   Whorl width: 0   Whorl height: 8.5  
Umbilicus: 17.5   Aperture height: 0  
General:
    ts
  Aperturally:
    di
  Outline of venter:
    rb
  Special form of v.:
    no
 
Flanks:
    cx
  Umbilical width:
    wi
  Umbilical edge:
    no
 
B Growth Lines
Pattern:
    fi
  Direction:
    pr
  Overall course:
    bi
  Ventrolat. salient:
    lo
 
Course on venter:
    hs
 
C Ribs and Nodes
Ribs,Nodes/whorl:
    tw
  Form of ribs:
    im
  Pattern:
    fr
  Position of ribs:
    fl
 
Direction:
    re
  Course:
    li
  Form of nodes:
     
  Position of nodes:
     
 
D Constrictions
Constr./whorl:
    no
  Form:
     
  Pattern:
     
  Position:
     
 
E Grooves
Number:
    no
 
F Spirals
Number:
    no
  Form:
     
  Strength:
     
  Position:
     
 
G Suture
(1) Ventral lobe: di         If simple:           If div., height of median saddle:    
      Form of ventral lobe: lm         Form of ventral prong: vs  
(2) Ventrolateral saddle: as         Outline: rb  
(3) First lateral lobe: sy         Outline: dr         Width v. lobe/Width 1st lat. lobe: nm  
(4) Following saddles: ro   (5) Add. lobes on flanks: ro   (6) Number of add. lobes: on  
(7) Form of dorsal lobe: bi   Sutural elements: E1 A U1 U2 I1