Serials are not certain. According to P.C. Boer one of the Hurricanes was serialled Z5664. The other Hurricanes might have serials in the Z56 range. In a letter he notes the only known serial to be Z5663.
Via Hans Berfelo I received the following listing:

Hurricanes IIA: Z2581, DG614.

Hurricanes IIB: Z5317, Z5319, Z5341, Z5437, Z5546, Z5546, Z5555, Z5556, Z5602,Z5609, Z5612, Z5616, Z5619, Z5622, Z5664, Z5682, Z5683, Z5690, Z5691,BD778, BG677, BG677.

and probably Hurricanes IIB: BD890, BD892, BD896, BD927, BE149, BE194,BE206, BE210, BE218, BE225, BE293, BE332, BE333, BE362, BE363

This list is based on the cargo-list of HMS Athene and English archives, researched by J. van der Wei.
So in fact 38 of the 39 Hurricanes are determined.

Note that serial Z5663 is not on this list, but serial Z5664 is! It is possibly a mistake in his letter??
Perhaps sometimes a photo is found of a Dutch Hurricane. Personally i think it outstanding that thus far in the Japanese archives nothing is found about captured Dutch Hurricanes.

 Any information is welcome.