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SMITHSONIAN    MISCELLANEOUS    COLLECTIONS  VOL.    96 
are  pointed  instead  of  rounded  at  the  ends  and  their  sharp  upward 
inclination  approaches  the  Punuk  trident ;  the  notches  at  the  bases 
of  the  wings  are  the  same  as  on  the  Old  Bering  Sea  forms.  On  the 
back  side  (text  fig.  23,  b,  and  Mathiassen,  fig.  19,  ^)  the  raised  central 
section  retains  the  general  Old  Bering  Sea  outline,  although  the  short 
inner  "  wings  "  are  narrower  and  are  directed  upward  rather  than 
outward.  This  is  the  crucial  step  in  the  metamorphosis,  for  it  was  this 
Fig.  23.— Ivury  "  winged  "  object  with  earl}'  Punuk  decoration,  norlliern  Alaska. 
raised  central  portion,  divested  of  the  flaring  outer  wings,  that  later 
developed  into  the  Punuk  trident.  The  ornamentation  on  both  speci- 
mens is  typically  Punuk — straight  or  slightly  curving  lines  and  dots, 
the  latter  either  free  or  enclosed  in  the  spaces  of  a  "  ladder  "  design. 
Another  stage  in  the  transition  is  represented  by  two  specimens  from 
Punuk  Island  and  Cape  Kialegak  previously  described  by  the  writer 
(Collins,  1929,  pi.  10,  a-b;  pi.  13,  b).  Here  we  have  the  square  basal 
socket  characteristic  of  the  older  forms,  and  wings  that,  although 
pointing  upward  in  a  Punuk  fashion,  are  still  relatively  broad  and 
