faded pale brownish, pale or whitish below. Sides of head 
and trunk with silvery-white reflections. Length 74 to 90 
mm. Four examples without data, though likely from Willa- 
mette Falls?. 
The types of P. gracilis Agassiz have not been located 
#ym the Gollection and in his description their dimensions 
ms 
ata. . 
are not given. He says I have preserved the characterist- 
ic of this genus as I had written it four years ago, when 
tT had only the specimens of the Exploring Expedition 
me, without any trace of pharyngeals or intestines.” 
above described examples are young and as they have the 
viscera intact could not refer to the material he had in 
mind. 
C 
15. Amer. Jour. cocci. 
reese ee ee ween = er nee 
The figure of the type evidently is based on a speci- 
men 232 mm. long, according to the original sketch 2/3 net- 
ural size. The sketch is by Drayton, labeled Wiliammette 
Falls, June 13, 184 ind caught with a hook.” 
Leuciscus balteatus (Richardson). 
tf 
sketch of small example caught with a hook at 
Whitmans, July 10, 1641. In "alla 
