﻿1 140 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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Mingan formation (60 to 75 feet above the base), Bald Island, Mingan Group, 

 St. Lawrence River, Quebec, Canada. 



B. Rostricelhila compressa Cooper, new species 634 



(12) Brachial view of a young specimen, showing delthyrium, X 3, paratype, 

 111481c. 



Lebanon formation, U. S. Highway 41, £ mile south of Knox Branch, 9 miles 

 southeast of Murfreesboro, Rutherford County, Tenn. 



C. Rostricelhila variabilis Cooper, new species 654 



(13-16) Respectively brachial, pedicle, anterior, and side views of a complete speci- 

 men, X 1, paratype, 11723s; (17-19) side, pedicle, and brachial views, X 2, of 

 the preceding. 



Ridley formation (Fascifera bed), 1 mile south-southeast of Cove Church, 

 5 miles south of Chickamauga, Kensington (T.V.A. 106-SE) Quadrangle, Ga. 



D. Rostricelhila variabilis Cooper, new species 654 



(20-23) Respectively side, pedicle, brachial, and anterior views of a complete 

 specimen, X I, holotype, 1 17232; (24-26) brachial, side, and pedicle views, X 2, 

 of the preceding. 



Horizon and locality same as preceding. 



E. Rostricelhila ovata Cooper, new species 642 



(27-31) Respectively pedicle, brachial, side, posterior, and anterior views of a 

 complete, nearly perfect specimen, X', paratype, 111532; (32-35) respectively 

 anterior, brachial, side, and pedicle views, X 2, of the preceding. 



Wardell formation (above crinoid bed), Mulberry Gap, Powell Mountain, 

 5 miles north of Sneedville, Sneedville (T.V.A. 170-SW) Quadrangle, Tenn. 



F. Rostricelhila acutiplicata Cooper, new species 630 



(36) Brachial view of a complete specimen, X I, paratype, 1172126; (37-41) 

 respectively posterior, pedicle, side, anterior, and brachial views of the preced- 

 ing, X 2, showing details of ornamentation. 

 Prosser formation (Zygospira bed), St. Paul, Minn. 



Plate 134 

 rostricellula 



A. Rostricelhila compressa Cooper, new species 634 



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

 the holotype, 111481a; (6-9) respectively anterior, brachial, side, and pedicle 

 views, X *h of the holotype; (10) brachial view of the holotype, X 2, showing 

 foramen and slight marginal thickenings on its rim. 



Lebanon formation, cut on U. S. Highway 41, f mile south of Knox Branch, 

 9 miles southeast of Murfreesboro, Rutherford County, Tenn. 

 (11-15) Respectively posterior, anterior, side, pedicle, and brachial views of an 

 obese specimen, X 1, paratype, 11 1468. 

 Lebanon formation, Columbia, Tenn. 

 (16) Posterior portion of pedicle interior showing dental plates, X 2, paratype, 

 111462a; (17) brachial interior, X 2, showing cruralium in normal view, para- 

 type, 111462b; (18) brachial interior tilted to show sockets, socket plates, 

 cruralium, and median septum, X 3, paratype, 111462c. 

 Lebanon formation, 3 miles east of Murfreesboro, Rutherford County, Tenn. 



B. Rostricelhila truncata Cooper, new species 652 



(19-23) Respectively anterior, pedicle, side, brachial and posterior views of a fine 

 specimen, X !, holotype, 117231; (24-26) pedicle, side, and brachial views of the 

 holotype, X *i- 

 Horizon and locality same as A, figs. 1-5, above. 



