270 NEW YORK STATE MUSEUM 



tlie two riicc'S habitually live; one is the slim, dark colored 

 luladi, and the other the common lake trout of the Great lakes 

 region. 



It is necessai'v, however, to call attention to the lake trout 

 from northern Vermont which furnished one of the series of 

 measurements given below. The gill rakers in that example are 

 few in number and unusually short, four or five on each side 

 being reduced to mere spiny tubercles. 



The following table gives dimensions in inches. 



MEASUREMENTS 



Newfound Winniplseo- Roxbury 

 lake 



6 



Length, including caudal 24^4 



Length to base of middle caudal rays > 21 



Tveast depth of caudal peduncle 1% 



Greatest depth of body 4% 



Thickness of body 2% 



length' of head 5% 



Length of snout I14 



I^ongth of postorbital part of head Sy^ 



I>engtli of upper jaw 2% 



Length of maxilla : 2^4 



Diameter of eye % 



Interorbital Avidth 1% 



I>istance from snout to dorsal 10% 



I>ength of dorsal base 2% 



J^ength of longest dorsal ray 3 



Length of last dorsal ray 1% 



PYom end of dorsal to adipose fin 4^2 



Length of adipose fin % 



Width of base of adipose fin % 



Distance from snout to ventral I214 



length of longest ventral ray 2% 



lyeugth of last ventral ray 1% 



Ivength of venti-al appendage % 



Distance from snout to anal 16 



Length of anal base 2 



Length of longest anal ray 2% 



Lcnglli of last anal ray 1 



I^'iigi h of pectoral 314 



1/cnglli of ui)per cauthil lobe 3% 



lA'iigtli of lower candal lobe 3% 



I>ength of longest gill raker ,'b 



