1907.] 



Dr. Hossack : The Rats of Calcutta. 



77 



TabIvE Comparing the Principal Measurements of Various Rats. 





Head and 

 body. 



Tau. 



Hind foot. 



Ear. 



Authority. 



M. rattus (full-grown) 



17-3 



20-97 



331 



2 12 



Hossack. 



M. rattus var. nitidus 



i8-5 



i8-5 



3-6 



216 



Do. 



M. decumanus 



22-6 



20"2 



4-15 



1-97 



Do. 



N. bengalensis 



1822 



1479 



319 



195 



Do. 



N. bandicota var. nemorivagus 



26-9 



25-5 



51 



27 



Do. 



N. bandicota 



3375 



30 



6-25 





Blanford. 



N. hardwickii 



i6-5 



II 



305 



1-25 



Do. 



N. huttoni 



1 6-8 



II-4 



37 





Anderson. 



N. scullyi 



16-5 



13 



4"4 





Do. 



N. from Jagdispur, Behar 



15-25 



14 



3'4 



177 



Hossack. 



TabIvE Comparing the Principai, Measurements of Various Rats expressed 

 AS Percentages of I^ength of Head and Body. 



M. rattus (full-grown) 



100 



121-2 



19-1 



12-2 



M. rattus var. nitidus 



100 



100 



19-4 



11-6 



M. decumanus 



100 



89 



18 



8-2 



N. bengalensis 



100 



81 



17-4 



10-7 



N. bandicota var. nemorivagus 



100 



94-5 



19-18 



10-2 



N. bandicota 



100 



88-8 



18-4 





N. hardwickii 



100 



66-6 



19 



7-5 



N. huttoni 



100 



67-8 



22 





N. scullyi 



100 



78-4 



26-6 





N. from Jagdispur, Behar 



.100 



91-8 



22-2 



11-6 



