84 BULLETIN OF THE BUREAU OF FISHERIES. 
MEASUREMENTS OF SPECIMENS OF CATOSTOMUS CATOSTOMUS. 
From Silvies River, Burns, Oreg. 
|| Height anal SpA SH Ra eSeaECaBSaec eons Sodsac | - 185 -20 
| 
Tength ol bodync esse. seoseae ee 178 | 229 
Length hexd -ces.5.2 . 2s. 215 ~2154||| Dength pectoral’: masc se see=n som aeeseaces Weeks 19 
Snoutito dorsales-se eee 51 251) |) Length ventral’ 2s. Sele. tn sec eee ae ob | mae 
Snout to ventral..........-- 575 #55) | || auength\ calidal see sens eeeeeema cena) eee eee ene} 24 
Depth caudal peduncle 075 +075 || Dorsal rays es es eee cent eceeeeae ll ll 
Length snout........------- Shit -105 || Anal rays. -... Rea ne ae eee Th 7 
Width lower lip.-..------- - 053 205) || Scalesilateraliline=Ss sesame. o: s-eeeeeetane | 93 93 
Diameter eye....-..------- - 037 -035 || Scales above lateral line.............--.....- 19 21 
Meiphtidorsal esse sse- 22s aeee see -18 +175 |) Scales/before(dorsall- 32ers. <2 ones eeenee 49 46 
{} 
From Silver River, Harney County, Oreg. 
uengthiof bod yes. a2- sc. cosas canes a eee ae mm... ppala abst) ahh) | abt} 115 52 55 
Menge thuben digs eerste nee nectar ee ae ee ee ee eee ee - 22 -24 |. .235 22 +23 +26 «25 
Snout to dorsal. - - -| 020. -54 | .52 | .52 - 525 -55 .o4 
Snotttitonventralenee- ean sees aee eee -| -585 -59 59 - 56 59 61 59 
Depthicaudal pedunclels sso eeree sae = eee eee eee - 085 -085 | .08 .08 -08 | .085 - 085 
TUG Yep R oe) go mons a oe aa ecco copes Sse eraeobegacodssesecc- - 105 IGE |) ceili - 10 ~ 115 . 116 Ly 
WAL GENO WW eIulip See see te tte ise eee enna :055 | .05 055} .05 05 - 06 055 
DIAe LOL CY Ons james eee ere ene eet 035 -045 04 | .043 - 04 055 05 
Height dorsal. ...--.--..-- 25-52-2222 ne = a a nnn nn = = 16 19 LTT LS . 185 21 20 
Rei hit ala ale SS ere enter lel le erate 225 |) asl ON| ie e20 seers) -175 17 mid, 
eng th pectorallies ss amen eee see ee ee SPU ai) || etait - 20 19 .19 . 20 
Mengthaventral ss -ees-s-re eee ware Ss 2|7 2.165 .16 . 165 | 16 .155 16 16 
Wength caudalsessnes-2-e-sseeen sees eee Sle Papell geste || m0) 24 . 23 26 7 
Morsalaray Shes eee see eae eee eee il i | il 12 11 11 ll 
ATIONET Oy S* seen oeeenner seater - 7] 7 7 7 7 7 7 
Scalesilateraliline== 22 -- ose tee 83 86 91 89 84 88 84 
Scales above lateral line. -...-------------- 18 20 18 19 18 19 19 
Stalesibefore/dorsall,cc-2. ee een oases cee ake encarta ae meas | 45 45 44 52 46 51 45 
Acrocheilus alutaceus (Agassiz & Pickering). 
Silvies River near Burns; 8 specimens about 100 mm. long. 
Mylopharodon conocephalus (Baird & Girard). 
Pitt River near Alturas, and near Canby, Big Valley. The former, 3 in number, measure about 350 
mm. in length. The fins were bright salmon red. Scales in lateral line 73 to 77, above lateral line 19 
to 20, between occiput and dorsal 49 to 54, dorsal 8, anal 8. ; 
Ptychocheilus oregonensis (Richardson). 
Specimens of Ptychocheilus from the Malheur basin are apparently identical with P. oregonensis of 
the Columbia. A comparison of examples from Silvies River and from the Willamette shows that the 
former have somewhat longer fins. A few individuals from Hangmans Creek, Washington, and from 
Boise River, Idaho, are intermediate in this respect between the Silvies and Willamette specimens. 
MEASUREMENTS OF SPECIMENS or PryCHOCHEILUS OREGONENSIS. 
From Silvies River near Burns, Oreg. 
| 
Length of body.......-- mm..| 218] 203] 222| 191) 219) 183] 153} 158} 145] 148 g g 
eng. thhes die oe eciacee Seer oe i 285 | .275°| .287 | .28) | .27 | .278 | .29. | .28) | .29) | .27 | .275') .29) | .20) | 28 |) 285 
Depth body.....-- -.-| -24 | .22) | 2245 | .235 | .225 | .245 | .245 | .225 | .22 | .22 | .245 | 21 | .22 | .21 | 122 
Snout to dorsal... .60 | .575 | .595 |} .585 | .575 | .58 | .58 | .595 | .60 | -58 
Snout to ventral. . 9561s ||(O05i|) 0054 | On| o0S) | ao Ae Meo dines bOmnl Ge Sa 
Length snout... .- 105 | 105 | . 095 | .10 | .10 | .105 ie A a ‘ 
Length maxillary . Bape) feg ada) rea UL ers Ota a er a eh be pea Gy eros abe yeah ebb Sib cb tial its) 
Diameter eye. -.---- -..| .043 | .045 | .045 | .046 | .042 | .045 | .05 | .045 | .05 | .05 | .065 | .055| .06 | .06 | .06 
Interorbital width ..-| .075 | .08 | .08 | .08 | .075|.08 | .08 | .08 | .08 | .08 | .08 | .08 | .085 | .085 | .08 
Height dorsal. . ..- | LT) |) SLT 3) 30759) UTS ae) 75) | SUSE Os | Sheet 83 3 20 eS O51 | 20 a eB 
i 
qq 
ou 
a 
on 
rs 
al 
D> 
oO 
oa 
oa 
or 
on 
ay 
S 
i 
I 
a 
a 
S 
a 
a 
= 
= 
ar 
S 
= 
° 
i 
So 
e 
= 
Height anal-.... SA75: |) 546) 4) 2155) 2 1556/16) | 2155 ule. Wee Poo a7, -165 |} .155 | .18 | .17 17 
Length pectoral. 5 5 . 5 : Z LT S85) || SUT SSS eal | Oh 51800 Pee ec, 
Length ventral. -| .155 | .155 | .15 15 .14 ~ 145) 215) | 2145) 2185) 215) | 215) 14 -15) | 7315, }) 5145 
Length caudal. . Be nelh de <2) +250 | .255 | .25 «20. | 227 
Dorsaltrayseaesseee ees 9 9 | 9 9 | 9 9 9 
‘Ania livarys'jaeeaseeeee ance eee i) om 83 8 8 8 8 8 8 
Scales lateral line.........-.-- | 69 68 69 69 70 74 74 | 
iS) 
i 
a 
=) 
a 
iS) 
i 
m 
=) 
to 
o 
_ 
R 
Scales before dorsal. ...-...-.- 49 46 50 48 50 49 47 | 
Scales above lateral line....... 19 19 17 19 18 48 18 | 19 18 20 19 17 20 17 18 
