Family Cucullaeidae - cucullaeid ark shells

  Order
:
  Class
:
Bivalvia
  No. of Genera in Ref.
:
  No. of Species in Ref.
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  Environment
:
Fresh : No | Brackish : No | Marine : No
  Aquarium
:
  First Fossil Record
:
     
  Remark
:
Shell inflated, inequilateral, slightly inequivalve. Umbones subcentral, on top of a trigonal cardinal area with chevron-shaped grooves and external ligament. Hinge elongate, straightish, with a series of transverse teeth, and subhorizontal teeth at both ends. Two subequal adductor muscle scars, inner margin of posterior scar on a projecting shelf. Pallial line without a sinus (Ref. 348).
  Etymology
:
  Division
:
  Reproductive guild
:
  Typical activity level
:
  Main Ref.
:
  Coordinator
:

Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]


php script by , 06/10/2010 ,  last modified by mortiz, 09/09/2010