270 NEW YORK STATE MUSEUM 



the two races habitually live; one is the slim, dark colored 

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

 region. 



It is necessary, 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 Wlnnlplseo- Roxburj' 

 lake 



$ 



Length, including caudal 24iA 



Length to base of middle caudal rays. ...... ^ 21 



Least depth of caudal peduncle 1% 



Greatest depth of body 4% 



iThickness of body 2% 



iljength of head 5% 



Length of snout 1% 



Lengtli of postorbital part of head S^^ 



Length of upper jaw 2% 



Length of maxilla 2^4 



Diameter of eye % 



Interorbital width 1% 



Distance from snout to dorsal 10% 



Length of dorsal base 2% 



Length of longest dorsal ray 3 



Length of last dorsal ray 1% 



lYom end of dorsal to adipose fin 4i^ 



Length of adipose fin % 



Width of base of adipose fin % 



Distan'ce from snout to ventral 1214: 



Length of longest ventral ray 2% 



Length of last ventral ray 1% 



Length of ventral appendage % 



Distance from snout to anal 16 



Length of anal base 2 



Length of longest anal ray 2% 



Length of last anal ray 1 



length of pectoral 31/^ 



Length of upper caudal lobe 3% 



I/ength of lower caudal lobe S\(i 



licugth of longest gill raker. I's lo -n 



