kiore (Maori), Kleine Pazifikratte (German), Maori rat (English), Pacific rat (English), Polynesian rat (English), rat du Pacifique (French), rat Polynésien (French), tikus Polynesia (Indonesia)
Rattus exulans has less than one third the maximum body weight of Rattus norvegicus (130g compared to 450g), and it has a much shorter maximum head-body length (excluding tail) than Rattus norvegicus (180mm compared to 275mm). Its tail length is approximately the same as its head-body length and it has 8 nipples compared to the Norway rat’s 12. Droppings left by Rattus exulans are half as long (6.4-9.0 mm) as the Norway rat’s (13.4-19.1 mm). Rattus exulans is an agile climber. It is not known to burrow but digs small holes and nests mainly on the ground. It feeds on the ground and in trees and is an infrequent swimmer. Rattus norvegicus burrows extensively, nests underground and is a strong swimmer. It climbs much less frequently than other rats and is very wary (Cunningham and Moors, 1993).
black rat (English), blue rat (English), bush rat (English), European house rat (English), Hausratte (German), roof rat (English), ship rat (English)