1907'] 



Dr. Hossack: The Rats of Calcutta. 



59 



Principal measurements of skulls of Calcutta Mus rattus 15 cm. and under 16 cm. 



No. 



6 



"A 



Is 



<u 

 xn 



Sex. 



■ 



G. L. 



4 

 m 



G. B. 



N. L. 



lo.B. 



C. B. 



Zy. PI. 



Pl.Iv. 



Diastema. 



Pal. 

 For. 





4 





^1 



Depth of 

 lower jaw. 



1 



78 



9 



385 

 100 



32 



831 



18-5 



48 



13 

 33-7 



5-5 

 14-2 



15-25 

 39-6 



4-5 

 11-6 



19 



49-3 



lo-s 



27-2 



7-5 

 19-4 



2-5 



6-3 



7 

 181 



2 

 5-1 







2 



105 



â 



415 

 100 



33-25 

 801 



19-5 

 46-9 



13-5 

 32-5 



55 

 13-2 



16 

 38-5 



4-5 

 10-8 



19-5 

 46-9 



10-5 

 25-3 



7-75 

 18-6 



2-5 

 6 



7-25 

 17-4 



2 



4-8 



245 



59 



II 

 26-5 



3 



160 



9 



39*5 

 100 



325 



82-2 



19-5 

 49-3 



14 

 35-4 



6 

 151 



15-5 

 39-2 



4-75 

 12 



20 

 50-6 



II 



27-8 



7-5 

 18-9 



25 

 6-3 



7 

 17-7 



2 



5 



, , 





4 



271 



d 



375 

 100 



31 



82-6 





12-5 

 33-3 



5-5 

 14-6 



15 

 40 



4-25 

 11-3 



18 



48 



95 

 26-5 



7-5 



20 



2-5 

 6-6 



7 

 18-6 



2 

 5-3 







5 



275 









17-S 



125 



5-5 



15 



4-5 



18 



ID 



7 



2-5 



6-5 



2 



23 



10 



6 



280 



9 



38s 

 100 



325 



84-4 



19-75 

 51-2 



13 

 33-7 



5-5 

 14-2 



15*25 

 39-6 



4-5 

 11-6 



i8-5 

 48-05 



10-5 



27-2 



7-5 

 19-4 



2-75 

 71 



7 

 18-1 



2 



51 



25 

 64-9 



12 

 31-1 



7 



284 



9 



38 

 100 



31 

 81-5 



19-5 

 51-3 



13-5 

 35-5 



5-75 

 151 



16 

 421 



5 

 131 



18 

 47-3 



lo-s 

 27-6 



7-5 

 19-7 



2-5 

 6-5 



7 

 18-4 



2 



5-2 







Total figs 



. . . 



2335 



19225 



114-25 



92 



39-25 



108 



32 



131 



725 



5225 



17-75 



48-75 



14 



72-5 



33 



Average 



































measureiE 



lent 



389 



' 32-04 



1904 



13-14 



5-6 



15-4 



4-57 



18-71 



10-35 



7-46 



2-53 



6-96 



2 



24-16 



II 



Average 



































percent 



age. 



100 



82-4 



48-9 



34 



14-4 



39-5 



11-7 



48-1 



26-6 



19-1 



6-5 



17-8 



51 



621 



28-4 



