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The pale field rat is a medium-sized species of Rattus, with a rounded and comparatively broad head. [3] [2] The upper side of the pelage is a toffee-like shade of brown, said to be appealing in appearance, which grades into the lighter cream or greyish white at the underside. [4]
The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 ...
Rats are typically distinguished from mice by their size. Usually the common name of a large muroid rodent will include the word "rat", while a smaller muroid's name will include "mouse". The common terms rat and mouse are not taxonomically specific. There are 56 known species of rats in the world. [1]
The Malayan field rat is known from Malaysia, Thailand, Sumatra, Borneo, the Philippines and many smaller islands. [1] Its typical habitat is primary and secondary forest, including coastal forest but it is seldom found in dipterocarp forests. It is also found in plantations, shrubby areas, grassland and gardens, but seldom invades buildings. [2]
One form of midden analysis examined the size of fecal pellets in pack rat middens. [17] The size of woodrat pellet is proportional to the size of the woodrat. By measuring the pellets, the approximate size of the woodrat was determined based on data from a study of field-trapped woodrats.
The wood mouse (Apodemus sylvaticus) is a murid rodent native to Europe and northwestern Africa. It is closely related to the yellow-necked mouse (Apodemus flavicollis) but differs in that it has no band of yellow fur around the neck, has slightly smaller ears, and is usually slightly smaller overall: around 90 mm (3.54 in) in length and 23 g in weight. [2]
The ricefield rat is a medium-sized rat with a grizzled yellow-brown and black pelage. Its belly is gray in the midline with whiter flanks. The tail is uniformly medium brown. They have chisel-like incisor. The ricefield rat is between 304–400 mm long with a tail length of 140–200 mm and a skull length of 37–41 mm.
The eastern woodrat is a rodent of medium size, with an average length of 21.2 centimetres (8.3 in) and weight of 245 grams (0.540 lb), [3] but grows up to 17 inches (43 cm) long. [5] The body is short and stocky and the tail is exceptionally long (15–20 centimetres (5.9–7.9 in)).