280 



TABLE B. 



LOCALITY. 



Torch Lake, Mich 



Cedar Rapids, Iowa 



White River, at Indianapolis 



Gosport, Ind 



Bean Blossom, Ind 



Rushville, Ind 



Wild Cat Creek, Ind 



Pike Creek, Ind 



Illinois 



Nipinsik Lake, 111 



Monongahela River 



Hartford, Ky ^ 



Green River, Greensburg, Ky 



Little Barren River, Osceola, Ky 



Little South Fork Cumberland River, Wayne 



County, Ky 



Eagle Creek, Olympus, Tenn 



Obeys River, Elizabethtown, Tenn 



Watauga River, Elizabethtown, Tenn 



North Fork Holsteu River, vSaltville, Va 



Eureka Springs, Ark 



Chocola Creek, Oxford, Ala 



San Marcos Springs, Tex 





^ aj --t< I 1) lo 



ZX 



J= '--- ^ -'^ ^ 



Oi X ; a> cc 



5 a 





1 i 



14± 



14' 



14 



144 



14^ 



14 



15 



14* 



15 



14 i 



15 



15 



15 



15 



16 

 10^ 



16A 



15* 



16 



16 



15* 



•-cd 





The coloj-pattern varies from a probably primitive, simple jDattern consisting 

 of alternate whole and half cross-bars distributed along the entire length of the 

 body through the pattern consisting of whole, half and quarter bars, having an 

 incomplete longitudinal series of lateral spots to a pattern having a very promi- 

 nent longitudinal series of dark lateral blotches with fine reticulations on the back. 

 Between these different patterns all stages exist, so that they can be connected by 

 regular steps. Those specimens inhabiting the lakes were found to possess a pecu- 

 liar color-pattern. This was derived from the primitive, simple pattern by sup- 

 posing the lower part of the whole bars to have become much broader than the 

 upper part, and then to have shifted backwards slightly. 



