Figs. 
Fig. 
Figs. 
TFigs. 
PLATH XXXVII. 
SPIRIFER) WACROPLEURUS: (Comes) peteiien wee ects ols ee 
1,2. Pedicle and anterior views of a complete individual (after 
Hall). 
3. The internal cast of a pedicle valve. Locality 8A. 
SPIRTHER PHREAMELLOSUS.) ELallll iayepercicisueteea sis vel eneiers rebels 
4. An incomplete brachial valve. Nearpass section, Lo- 
cality 2A.” ‘ 
5, 6. Pedicle and anterior views of a complete individual (after 
Hall). 
CENTRONELLA ? SUBRHOMBOIDEA Ni SP... .....0.0...2s0008 
7-10. Brachial, pedicle, lateral and anterior views of a com- 
plete individual. Nearpass section, Locality 2A.° 
ANOPTOMEHH OA KCONGAWAL | (eLallll)i ese epenencrelsl oleienelerstetele Neheleye 
11-14. Pedicle, brachial, lateral and anterior views ofa complete 
individual. From Schoharie, New York. Pal. Coll 
Walker Museum, University of Chicago, No. 8,522. 
(x2): 
15. A pedicle valve. Hainesville, Locality 25D. (x2). 
NUCLHOSPIRAL oVENIDRICOS Au wel alley denesetajente sie loiederaetel peterstene 
16. An incomplete pedicle valve. Locality 8 A. 
ATRYPENASIMBRIC ATA CELA) proriateteie ee rsyeiidsrheeneyets Greate 
17-20. Brachial, pedicle, anterior and lateral views of a complete 
individual. From the Helderberg Mountains, New 
York. Pal. Coll. Walker Museum, University of 
Chicago, No. 902. (x2). 
. An elongate pedicle valve. Hainesville, Locality 25 D. 
(<2): 
. A large brachial valve. From Schoharie, New York. Pal. 
Coll. Walker Museum, University of Chicago, No. 
Sio208 (G2) 
(435) 
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