NO. 12 PERMIAN BRACHIOPODS FROM OREGON—COOPER 
PLATE 3 
A. Antiquatonia reticulata Cooper, new SPeCi€S.........eeceeeeeeeceeeces 
(1) Impression of the exterior of a brachial valve showing the 
reticulate visceral region, X 1, paratype, U.S.N.M. 125349. Locality 
S67. 
(2-5) Respectively side, dorsal, anterior, and ventral views of a small 
individual without complete trail, <1, paratype, U.S.N.M. 125347. 
Locality Pro. 
(6-9) Respectively posterior, ventral, side, and anterior views of a 
large specimen with strongly reticulate visceral region and long trail, 
X 1, holotype, U.S.N.M. 125348. Locality S2o. 
B. Proboscidella? carinata Muir-Wood and Cooper, new species.......... 
(10) Ventral view of a well-preserved pedicle valve showing long 
carinate trail, X 1, holotype, U.S.N.M. 124156a; (11-14) respectively 
anterior, ventral, side, and posterior views of the holotype, X 2, 
Locality S12. 
(15) Impression of the interior of a pedicle valve showing groove left 
by solution of subperipheral rim, 1, paratype, U.S.N.M. 124157. 
Locality S49. 
(16, 17) Anterior and ventral views of another pedicle valve showing 
depression just posterior to line of geniculation, 2, paratype, 
U.S.N.M. 125533. Locality U.O. 2201-2. 
PLATE 4 
A. Kochiproductus transversus Cooper, new SpecieS...........eeceeceeees 
(1-3) Respectively ventral, side, and dorsal views of a complete 
specimen showing fold on brachial valve, 1, holotype, U.S.N.M. 
125332. Locality Pro. 
(4-6) Respectively ventral, posterior, and side views of a larger speci- 
men showing part of ventrally deflected anterior border, X 1, para- 
type, U.S.N.M. 125331. Locality U.O. 2201-1. 
By KRochtproducius ci. K. porrectus (Koutorga) oo... 2 ven uasee adiaeneees® 
(7) Dorsal view of a large but fragmentary specimen, X 1, figured 
specimen, U.S.N.M. 125333. Locality U.O. 2202-2. 
C. Waagenoconcha parvispinosa Cooper, new SPeCieS...........e ce eee ees 
(8) Rubber replica of the exterior of a large brachial valve showing 
minute spine bases, X I, paratype, U.S.N.M. 125354. Locality S46. 
(9, 10) Ventral and side views of a pedicle valve with outline restored, 
1, holotype, U.S.N.M. 125353. Locality 636. 
(11, 12) Respectively 1 and X2 views of another pedicle valve 
younger than the preceding, paratype, U.S.N.M. 125352a. Locality 
Piz, 
PLATE 5 
A. Muirwoodia transversa Cooper, New SPECIES....... eee ee eee eee eee 
(1) Ventral view of a specimen preserving one of the long anterior 
spines, X I, paratype, U.S.N.M. 125340. Locality S43. 
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