﻿1224 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I27 



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B. Macrocoelia plebeia Cooper, new species 899 



(4) Exterior view, X 1, of a paratype, 117791 ; (5, 6) side and exterior views of 

 the pedicle valve, X 2, of the same specimen. 



Lenoir formation (Valcourea bed), small abandoned quarry between the 

 Southern RR. tracks and U. S. Highway 11, ii miles southwest of Philadelphia, 

 Philadelphia (T.V.A. 131-NW) Quadrangle, Tenn. 



C. Macrocoelia elegantula Cooper, new species 893 



(7-10) Respectively posterior, side, brachial, and pedicle views of a damaged 

 specimen, outlines restored, X I, paratype, 117776a; (11) posterior of the pre- 

 ceding specimen, X 2, showing the interareas, chilidium, and extremely short 

 pseudodeltidium ; (12) imperfect pedicle interior showing the flabellate muscle 

 scars, X i> paratype, 117776b. 



Whistle Creek formation, ii miles northwest of Lexington, Lexington (15') 

 Quadrangle, Va. 



D. Macrocoelia occidentalis Cooper, new species 896 



(13) Exterior of the pedicle valve, X I, paratype, 1 17784. 

 Yellow-weathering limestone on 25-foot sandstone at base of Eureka group, 



3 miles north of Martin Ranch, Roberts Mountains (i°) Quadrangle, Nev. 



(14) Another pedicle exterior, X I, paratype, 117785c. 



Same formation as above, 1.9 miles N. 31 E. of Blair (= Segura) Ranch, 

 Roberts Mountains (i°) Quadrangle, Nev. 

 (15-19) Respectively anterior, pedicle, side, posterior, and brachial views, X 1, of 

 the holotype, 1 17787; (20) enlargement, X 2, of the posterior part of the brachial 

 valve of the holotype, showing ornamentation. 



Same formation, 2 miles north of Martin Ranch, Roberts Mountains (i c ) 

 Quadrangle, Nev. 



Plate 234 

 Macrocoelia 



A. Macrocoelia rotunda Cooper, new species 899 



(i, 2, 3, 5) Respectively posterior, side, anterior, and pedicle views of the pedicle 

 valve, X 1, paratype, 98200c ; (4) brachial view of a complete specimen, X I, 

 holotype, 98200a. 



Benbolt formation (lower), Green Valley Church, 3 miles southwest of 

 Lebanon, Brumley (T.V.A. 205-SE) Quadrangle, Va. 



B. Macrocoelia bella Cooper, new species 891 



(6-10) Anterior, brachial, side, posterior, and pedicle views of the holotype, 

 117766a; (11, 12) brachial and pedicle views of an imperfect specimen showing 

 the ornamentation well, X I, paratype, 117764- 



Bromide formation (Mountain Lake member), cut on Oklahoma Highway 18, 

 1.8 miles south of Sulphur, sec. 11, T. 1 S., R. 3 E., Murray County, Okla. 

 (13) Brachial interior showing ridges and cardinalia, X I, paratype, 117765. 



Bromide formation (Mountain Lake member), 4 miles south of Davis, Murray 

 County, Okla. 



Plate 235 

 Glyptomena, Macrocoelia 



A. Glyptomena t prisca (Raymond) 884 



(1) Exterior of the brachial valve, X 2, holotype, Carnegie Mus. 5464. 



Crown Point formation, Valcour Island, Lake Champlain, Plattsburg (15') 

 Quadrangle, N. Y. 



