Hi Gina
Here's the link to the "Rakaia" (1878) passenger list.
http://freepages.genealogy.rootsweb.ancestry.com/~ourstuff/Rakaia.htm[This is from the "Denise and Peter's" shipping / passenger list, website. You can find the search link for this and other passenger-list websites, in the Resources section of this board.] Unfortunately not able to see anything for a Robert RICE arriving in NZ.
Burials - (Janet and her infant son) : Was a tad curious as to why Janet's other babies had had Church of England burials, and wee Joseph, a Roman Catholic one. On checking Janet's cemetery listing, I noted the plot number was the same as for Joseph.

[Some NZ cemetery websites have a beaut feature whereby you can simply click on a link to find who else is buried in a particular plot - it doesn't though apply to the Wellington cemeteries database.]
~ Lu