36 
OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Number 159 
tioned, except that Klamathella fossils are found in Pliocene sediments at Honey Lake, Madeline Plains 
and Alturas Valley (= Signal Butte). 
Remarks : The UCMP catalogue lists the following specimens from locality UCMP V95030 under the general 
identification of Cyprinidae: UCMP 142467-142589. We follow Gilbert (1998), Eschmeyer (1998), and 
Nelson (2004) by recognizing the genus Gila rather than Klamathella. 
Genus Lavinia Girard 1854a 
f Lavinia sp. 
Referred Specimens in Wagner et al. 0997:161 : From Madeline Plains local fauna, upper Alturas Formation, 
mid-Pliocene, Lassen County; no specimens mentioned. 
Referred Specimens in Smith et al. 12002:193. 207. 209. table P : From Madeline Plains local fauna, upper 
Alturas Formation, mid-Pliocene, Lassen County; no specimens mentioned. 
From Secret Valley-Mudflat local fauna, upper Alturas Formation, mid-Pliocene, Lassen County; no spec¬ 
imens mentioned. 
From Mono Basin, Late Pliocene, Mono County; no specimens mentioned. 
Remarks : See Remarks section for Acrocheilus. 
Genus Ortho don Girard 1856b 
Ortho don sp. 
Referred Specimens in Casteel and Hutchison 0973:358-361. figs. 3d-3f) : From UCMP locality V6878, 
Mehrten Formation, Late Miocene (Hemphillian), Stanislaus County; UCMP 96299, 41 teeth. 
Referred Specimens in Casteel 0978:2961 : From USGS vertebrate locality M-1219, Santa Clara Formation, 
Plio-Pleistocene, near Saratoga, Santa Clara County; no specific specimens mentioned. 
Referred Specimens in Smith 0981:table 2k No specific locality or specimens mentioned. 
Genus Ptychocheilus Agassiz 1855 
f Ptychocheilus cf. P. arciferus (Cope 1870) 
Selected Synonymy & References 
f Oligobelis arciferus Cope 1870:541. 
f Oligobelis laminatus Cope 1870:541: Smith 1975:35. 
fSemotilus posticus Cope 1870:541: Smith 1975:35. 
f Semotilus bairdii Cope 1870:542: Smith 1975:35. 
^Squalius arciferus (Cope): Cope 1883:157-158: Smith 1975:35. 
•\Squaliusposticus (Cope): Cope 1883:157: Smith 1975:35. 
•\Squalius laminatus (Cope): Cope 1883:157: Smith 1975:35. 
'fSqualius reddingi Cope 1883:157: Smith 1975:35. 
’fSqualius bairdi (Cope): Cope 1883:157: Smith 1975:35. 
f Leuciscus reddingi (Cope): Hussakof 1908:80: Smith 1975:35. 
f Ptychocheilus cf. P. arcifer : Wagner et al. 1997:15. 
Holotvpe and Type Locality of f Oligobelis arciferus Cone 11870:5411 : USNM specimens 9782, 9791 [accord¬ 
ing to Uyeno and Miller (1963), the specimens may be lost or misplaced], probably from Glenns Ferry 
Formation [Miller and Smith (1967)], Plio-Pleistocene, Catherine Creek, Owyhee County, Idaho. 
Holotvpe of ^Oligobelis laminatus in Cope 1870:541 : From same type locality as f O. arciferus: USNM 9791 
[according to Uyeno and Miller (1963), the specimen may be lost or misplaced]. 
Holotvpe of ft Semotilus posticus in Cope 0870:5421 : From same type locality as f O. arciferus: USNM 1489 
[according to Uyeno and Miller (1963), the specimen may be lost or misplaced]. 
Holotvpe of ft Semotilus bairdii in Cone 11870:542k USNM 1482 [according to Uyeno and Miller (1963), the 
specimen may be lost or misplaced]. 
