﻿II l8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 



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H. Liricamera nevadensis Cooper, new species 592 



(50-54) Respectively brachial, posterior, side, pedicle, and anterior views of a 

 small but complete specimen, X 2, paratype, 117175c; (55) pedicle exterior, X I, 

 paratype, 117175b; (56) pedicle view of an imperfect specimen, X 2, paratype, 

 117175b; (57) brachial interior showing small characteristic cruralium, X 2, 

 paratype, H7i75d. 



Pogonip group (Orthidiella zone — mottled zone 700 feet below the Eureka 

 quartzite), base of first ridge east of Frenchman Flat, Las Vegas (i°) Quad- 

 rangle, Nev. 



Plate hi 

 Camerella, Perimecocoelia, Stenocamara 



A. Camerella bicostata Cooper, new species 564 



(1-5) Respectively brachial, posterior, side, anterior, and pedicle views of a young 

 specimen, X I, paratype, 111106; (11-15) respectively pedicle, anterior, side, 

 posterior, and brachial views of an obese and slightly crushed specimen, X 1, 

 paratype, 117130a. 



Lincolnshire formation (Hogskin member — upper), 0.4 mile northeast of Red 

 Hill, 4i miles west-southwest of Thorn Hill, Avondale (T.V.A. 162-SW) Quad- 

 rangle, Tenn. 



(6-10) Respectively brachial, posterior, anterior, pedicle, and side views of an- 

 other complete specimen, X l, paratype, iillioa. 



Lincolnshire formation (Hogskin member), Sally Cleveland Farm, f mile 

 southwest of Washburn, Dutch Valley (T.V.A. 154-SE) Quadrangle, Tenn. 



B. Camerella quadriplicata (Willard) 579 



(16, 17) Pedicle and anterior views of a small specimen, X I. hypotype, 111155b. 



Horizon and locality same as preceding. 

 (18-20) Respectively brachial, pedicle, and side views of a slightly broken speci- 

 men, X 1, hypotype, 118011a; (21) brachial view, X 2, of the preceding. The 

 hole in the center of the specimen was broken in taking the X 2 enlargement. 

 Horizon and locality same as A (1-5) above. 

 (22-24) Respectively pedicle, anterior, and brachial views of a weathered speci- 

 men, X 1, hypotype, 111157a; (26) enlargement of the surface, X 4, showing 

 fine papillae, hypotype, 111157c. 



Lincolnshire formation (Hogskin member), 2.1 miles southwest of Mount 

 Eager Church, Hogskin Valley, Powder Springs (T.V.A. 154-SW) Quadrangle, 

 Tenn. 

 (25) Brachial exterior, X 1, hypotype, 111156a. 



Lincolnshire formation near Marble Bluff, 8 miles west-northwest of Loudon, 

 Loudon (30') Quadrangle, Tenn. 



C. Perimecocoelia elliptica Cooper, new species 594 



(27-30) Respectively brachial, anterior, pedicle, and posterior views, X 1, of the 

 holotype, 11 1 164; (31-35) respectively posterior, brachial, side, pedicle, and 

 anterior views, X 2, of the holotype. 



Arline formation, north side of old wagon road in cedar glade, \ mile south- 

 east of Friendsville, Concord (T.V.A. 138-SW) Quadrangle, Tenn. 



D. Camerella tumida Cooper, new species 582 



(36-40) Respectively pedicle, anterior, posterior, brachial, and side views of a com- 

 plete specimen, X 2, holotype, 1 171 46. 



Table Head series (middle to lower), Lower Head, 4 miles north of Cow 

 Head, Newfoundland. 



E. Stenocamara perplexa Cooper, new species 603 



(41-45) Respectively side, anterior, pedicle, posterior, and brachial views of a 

 complete specimen, X I, holotype, 111321. 



