. Smithsonian miscellaneous collections . SYNTROPHIA-HUENELLA. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 9, PL. 119. SYNTROPHIA-HUENELLA. NO. 9 CAMBRIAN AND OZARKIAN BRACHIOPODA 547 DESCRIPTION OF PLATE 119 PAGE Syntrophia nisis Walcott 517 Fig. 1. (X4-) Ventral valve with strong ridge on sides of mesialfold. U. S. Nat. Mus., Cat. No. 69780. 2. (X 4-) Dorsal valve with furrow on mesial fold. U. S. Nat. Mus., Cat. No. 69781. 3. (X4-) Dorsal valve with faint furrow on mesial fold. U. S. Nat. Mus., Cat. No. 69782. The specimens represented by figs. 1-3 are from locality 66 o,Ozarkian: Mo
. Smithsonian miscellaneous collections . SYNTROPHIA-HUENELLA. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 9, PL. 119. SYNTROPHIA-HUENELLA. NO. 9 CAMBRIAN AND OZARKIAN BRACHIOPODA 547 DESCRIPTION OF PLATE 119 PAGE Syntrophia nisis Walcott 517 Fig. 1. (X4-) Ventral valve with strong ridge on sides of mesialfold. U. S. Nat. Mus., Cat. No. 69780. 2. (X 4-) Dorsal valve with furrow on mesial fold. U. S. Nat. Mus., Cat. No. 69781. 3. (X4-) Dorsal valve with faint furrow on mesial fold. U. S. Nat. Mus., Cat. No. 69782. The specimens represented by figs. 1-3 are from locality 66 o,Ozarkian: Mons formation; Fossil Mountain, Alberta, Can. Syntrophia nonus Walcott 518 Fig. 4. (X 4-) Ventral valve with a slight mesial sinus. U. S. , Cat. No. 69783. 5. (X4-) Dorsal valve with broad mesial fold. U. S. Nat. Mus., Cat. No. 69784. 6. (X4-) Dorsal valve with a more sharply elevated mesial fold. U. S. Nat. Mus., Cat. No. 69785. 7. (X 4-) Dorsal valve with a few faint radiating ribs. U. S. Nat. Mus., Cat. No. 69786. 8. (X4-) Ventral valve. U. S. Nat. Mus., Cat. No. 69787. 9. (X 4-) A large exfoliated ventral val
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