I907-. 



Dr. Hossack : The Rats of Calcutta. 



37 



Analysis of measurements of Nesokia bengalensis. 





Length of 



head and 



body. 



Length of 

 tail. 



Length of 

 hind foot. 



Tip of ear 

 to meatus. 



Rough average 





18-181 



14-8 



3-2 



1-94 



Average large 





19-5 









Average small 





17-2 









Maximum 





20-5 





3-8 



2-2 



i\Iinimum 





15 





3, 



1-8 



Average percentage 



of head and body-length . . 



100 



81» 



17 



10-7 



Average long 



do. 



100 



82 







Average short 



do. 



100 



77 







Maximum 



do. 



100 



94 



21 





Minimum 



do. 



100 



69 



15 





NOTE ON A RAT FROM KII.AKARAI ON THE GULF OF M AN A AR. 



In 1905 Dr. Annandale collected in Kilakarai, G. of Manaar, a rat (Reg. No. 8078 

 of the Indian Museum) which was sent home to the British Museum for identifica- 

 tion, and which has been named by Mr. Wroughton/ in the list of mammals ap- 

 pended to Dr. Annandale' s " Notes on the Fauna of a Desert Tract in Southern India," 

 Nesokia bengalensis. This rat at first put me considerably astray, as it was so 

 totally different in many respects from the series which I was beginning to identify 

 as Nesokia bengalensis. Its dimensions, fresh, were as follows, compared with 

 those of an immature specimen of Nesokia bandicota : — 



Head and body. Tail. Hind foot. Ear. 

 Rat from Kilakarai . . . . 17-5 17-5 4-4 2*4 



Immature A^. bandicota . . 17-5 15 "5 4*4 2*6 



The tail seemed rather long, 100 per cent, of the body-length, as compared with 

 an average in my series of 79, with only two instances out of fifty above 90, namely, 95 

 and 91. The foot measurement was, however, much more striking, being no less than 26 

 per cent, of the total length, a proportion which I have already shown is found only 



' 86 per cent, have a length between 17 and 19-5 cm. 



2 76 per cent, of the tails are found between 75-85 per cent, of head and body-length. 



''^ Mem. Asiat. Soc. Bengal, vol. i. 



