Study Of Museum Specimen Of Rattus with Comment & Diagram

Codynn
1 Min Read

GEOGRAPHICAL DISTRIBUTION:

Rattus rattus is found throughout the world. It prefers a warm and dry climate.

CHARACTERS:

i) Rattus rattus is commonly called common rat.

ii) The body of the rat is slender with thick-set fine for mixed with stiff hairs.

iii) It is usually grayish or brownish in colour.

iv) Rat measures about 25 cm including tail.

v) Body is divisible into 4 distinct regions: heads, neck, trunk and tail.

vi) Head is elongated, somewhat conical in shape and tapering anteriorly to a terminal nose.

vii) Neck is a short region joining the head to trunk.

viii) Trunk is the largest part of the body.

ix) Anus is a small median aperture below the base of the tail.

x) Tail is elongated, cylindrical and tapering & often slightly longer than the body.

ECONOMIC IMPORTANCE:

i) It acts as a carrier of diseases like plague and typhus.

ii) It destroys the grains and other food stuff in storage.

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