Rebecca Dubber finished sixth in the S7 category 50m freestyle in 36.95s, a personal best at the meet and just her second time under 37s.
The New Zealand women's team of Dubber, Nikita Howarth, Sophie Pascoe and Georgia Gray finished seventh in the 4 x 100m medley relay in 5min 09.48s.
There were six medals for Canterbury's Pascoe, who along with Fisher dominated the medal haul.
Paralympics New Zealand's high performance director Malcolm Hunn was delighted with the return.
"We set ourselves the ambitious target of 15 medals, to test our systems and structures as preparation for Rio, and provide new, emerging talent, athletes with the opportunity to gain high-quality international experience as preparation for Rio and Tokyo 2020 Paralympic Games. We have accomplished all these goals, which bodes well for the future."
Medal haul
•New Zealand para swimmers won eight gold medals, six silver and two bronze at the IPC world championships, which ended in Glasgow yesterday.
•Mary Fisher (three gold, two silver) and Sophie Pascoe (three gold, a silver and two bronze) were the top contributors.
•Nikita Howarth won two gold medals, Rebecca Dubber two silvers and Cameron Leslie one silver.
•The performances secured five slots at the Rio Paralympics for New Zealand and enabled them to finish top of the medal table on a per capita basis.