321 



Pecten cra-wfordi, Hutton. 



1873. Pecten craivfordi, Hutton, Cat. Tert. Moll. N.Z. p. 32. 



Sliell slightly convex, having five or six principal radiating 

 riil^es, which are much elevated in the neighbourhood of the 

 umbo, but become gradually depressed and even obsolete on 

 attaining the ventral margin, in the adult ; these broad, flat costse 

 or ridges become divided into several small rounded ribs on nearing 

 the margin ; the interstices have several minor costag. 



Dimensions. — Height 55 mm. ; length 61 mm. 



Form, and Loc. — Eocene : Akuakua, east coast of Auckland, 

 New Zealand. 



L 10541. Examples of both valves, apparently referable to 

 this unfigured species. Sir James Hector Coll. 



Pecten, sp. 



L. 10498. Internal cast and part of the shell of a species 

 allied to P. crawfordi. Eocene : Akuakua, Auckland, New Zealand. 



Sir James Hector Coll. 



L. 10539. Part of the shell of a species having distantly 

 separated, rounded, and elevated radiating costae, with a lineation 

 in each of the interspaces. Eocene : Akuakua. 



Sir James Hector Coll. 



L. 10503, L. 10544. Casts and interior of an orbicular species, 

 having several broad radiating costae, boldly lineated, as are 

 also the interspaces. Eocene : Culverden, Nelson, New Zealand. 



Sir James Hector Coll. 



L. 10531. Imperfect specimen of a new species, allied to 

 r. mitrrayanus ; from Pidinga, Fowler's Bay District, South 

 Australia. H. Y. L. Brown Coll. 



L. 10533-5. Several imperfect examples of a species allied 

 to P. aldingensis, Tate ; from Willunga, South Austialia. 



H. T. L. Brown Coll. 



L 10549. Exterior of right valve of a Pecten, aff. inurrai/anus; 

 Nullarbor Plains, South Australia. H. Y. L. Brown Coll. 



L. 10550. Cast of a species allied to, or identical with, 

 P. antiaustralis. "Lower Tertiary" : Ardrossan, Yorke's Peninsula, 

 Soulh Australia. H. Y. L. Brown Coll. 



