. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. 84 BULLETIN OF THE BUREAU OF FISHERIES. Measurements of Specimens of Catostomus catostomus. From Silvies River, Bums, Oreg. Length of body mm Length head Snout to dorsal Snout to ventral Depth caudal peduncle Length snout Width lower lip Diameter eye Height dorsal. Height anal Length pectoral Length ventral Length caudal Dorsal rays Anal rays Scales lateral line Scales above lateral Scales before dorsal From Silver River, Harney County, Oreg. Length of body Length head Snout to dorsal Snout to ventral Depth caudal peduncle
. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. 84 BULLETIN OF THE BUREAU OF FISHERIES. Measurements of Specimens of Catostomus catostomus. From Silvies River, Bums, Oreg. Length of body mm Length head Snout to dorsal Snout to ventral Depth caudal peduncle Length snout Width lower lip Diameter eye Height dorsal. Height anal Length pectoral Length ventral Length caudal Dorsal rays Anal rays Scales lateral line Scales above lateral Scales before dorsal From Silver River, Harney County, Oreg. Length of body Length head Snout to dorsal Snout to ventral Depth caudal peduncle . Length snout Width lower lip Diameter eye Height dorsal Height anal Length pectoral Length ventral Length caudal Dorsal rays Anal rays Scales lateral line Scales above lateral line Scales before dorsal 121 112 118 .115 52 .24 .235 .22 .23 .26 .54 .52 .52 .625 .55 ..">» .59 .56 .59 .61 .(IM .08 .08 .08 .085 11 .11 .10 .115 .116 .(W .055 .05 .05 .06 , .04 .043 .04 .055 .19 .175 .18 .185 .21 .17fl .20 .19 .175 .17 â IH .195 .20 .19 .19 .1« .165 .16 .155 .16 .2:< .22 .24 .23 .26 11 11 12 11 11 7 7 7 7 7 SK 91 89 84 88 â¢Â»\ 18 19 18 19 45 44 52 46 51 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 f'olumliia. 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 Sil
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