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MR.  BRODERIP'S  DESCRIPTIONS  OF  CALYPTR^EID^. 
Long.  1  poll.,  lat.       alt.  -jV- 
Hab.  ad  Panamam. 
The  apex  of  this  very  flat  species  is  lost  in  the  margin. 
Found  under  stones. 
I  have  before  me  several  more  of  this  family,  some  of  which  may  be  new ;  but  1 
hesitate  to  describe  them  till  I  have  more  satisfactory  evidence  that  they  are  not 
varieties  or  species  already  recorded.  Many  shells  of  Calyptrmda  are  figured  by 
Martini,  Lister,  and  other  authors ;  and  it  is  not  improbable  that  some  of  the  species 
above  described  may  have  afforded  the  subjects  from  which  the  engravings  were  made: 
but  the  figures  are  for  the  most  part  so  doubtful  that  no  dependence  can  be  placed 
upon  the  majority  of  them,  and  they  rather  embarrass  than  assist  the  inquirer. 
