Radula of Californian Philine orientalis

Here are some SEM photos of the radula. They are very similar to those of the Hong Kong species I have tentatively identifed as Philine orientalis but in that species the denticles are not arranged in a uniform comb-like pattern as here in the Californian specimens. .. Bill Rudman.

UPPER: Whole tooth showing denticles along the edge of the tooth.
LOWER: magnified view of denticles.
PHOTOS: Alison Miller.