Mylopharodontinge. 
hd , fe 
Mylocheilus caurinus (Richardson). Tego DO 
Core a he "Fie 
i 
A drawing of Mylocheilus lateralis Agassiz and 
Pickering, is 257 mm. long, which is 2/3 natural size 
according to the original sketch. The latter says " 
caught with a hook in the @olumbia River at Fort Van- 
couver. J. Drayton, May 31, 1841." Another drawing shows 
an example 110 mm. long, and the legend says, J. Drayton, 
Nesqually, Puget Sound, May 1841, from a fresh-water creek 
near the fort. 
Leuciscinae. 
/ \ € 
Pogonichthys macrolepidotus (Ayres). P« Af s 
Two drawings of specimens from the Sacramento River, 
Calif. 
a) 4 
: tg (Ri re IIe 
Ptychocheilus oregonensis (Richardson). Akt ¢Q Oe 
a 
Head 32 to 4; depth 4 4/5 to 53: D. 41, 7 or 8; A. il, 
<_ 
7; scales 65 to 70 in lateral line to caudal base and 5 
more on latter; 12 to 14 scales above 1. 1., 6 or 7 below; 
34 or 35 predorsal scales; snout 3 1/6 to 33 in head; eye 
31/6 to 33; maxillary 3 to 31/5; interorbital 3 1/5 to 
3. Head width half its length. Snout conic, length 7/8 
its width. Maxillary to hind nostril. Lower jaw slightly 
shorter than upper. Interorbital convex. In alcohol; 
