NO. 12 PERMIAN BRACHIOPODS FROM OREGON—COOPER 59 
Texas, P. shumardiana and rhomboidalis. Both of these species are 
more nasute than the Oregon species. 
Of species described outside North America, P. berthiaumei, new 
species, is very close to P. semiglobosa (Tschernyschew) from the 
“Schwagerina” limestone of the Urals but differs in having a more 
convex brachial valve and less strongly rounded sides. Another Rus- 
sian species having some similarity is P. uralica (Tschernyschew), 
but that one is more elongated and has a very modest development 
of the fold and sulcus, even less than in the Oregon species. 
Although the holotype specimen is somewhat crushed, the growth 
lines are clear in places and show the lateral margin to have been only 
gently convex. 
PSEUDOMARTINIA aff. P. SEMIGLOBOSA (Tschernyschew) 
Martinia semiglobosa TscHERNYSCHEW, Mém. Com. Géol., St. Petersburg, vol. 
16, No. 2, p. 564, pl. 17, figs. 6-10, 12, 13, 1902. 
A fragmentary specimen is referred to Tschernyschew’s species 
but it is impossible to make a more satisfactory identification, The 
profile and size of the valves agree as far as they are preserved. The 
fold and sulcus are indicated as low and of gentle contours and the 
tongue of the pedicle valve is short and rounded. These are features 
shared by Tschernyschew’s type specimens. The umbo of the brachial 
valve of the Oregon specimen is narrower and the beak smaller than 
that of the Russian specimens. This is, however, the only important 
difference between the two. 
Measurements in mm.—Described specimen, U.S.N.M. 125456, 
brachial valve length 21.2, width 23.2 (based on half measure), 
height about 6. 
Type—Described specimen, U.S.N.M. 125456. 
Localities —S12; U.O. 2201-1, 2202-2, 2219-1, 2225. 
Subfamily PHricopoTHYRINAE Caster, 1939 
SQUAMULARIA ROSTRATA (Kutorga) 
Plate 10F, figures 36-42 
Spirifer rostratus Kurorca, Verhandl. Russ.-Kais. Min. Ges., St. Petersburg, 
1842, p. 25, pl. 5, fig. 10. 
Reticularia rostrata TSCHERNYSCHEW, Mém. Com. Géol., St. Petersburg, vol. 
16, No. 2, p. 575, pl. 20, figs. 17 and 18, 1902. 
Squamularia rostrata (Kutorga) Branson, Geol. Soc. Amer. Mem. 26, p. 521, 
1948. 
A single specimen is referred to this species, although differences 
are apparent between it and Tschernyschew’s figure of Kutorga’s 
