PLATE 7. 
Trans. N.Z: Inst. Vor. 54. 
Huttoni Group. 
River.) 
(Wangaloa.) 
Marwick. (White Rock 
4.—Glycymeris concava Marshall var. 
ris huttoni 
ymeris вр. (Akuaku.) 
. 2.—Gl 
Fie. 3.—Glyc 
Fias. 1, 
О. 
Fr 
