. Transactions - American Philosophical Society. \ ir\. 41 jliiationta. ar^en^e-a. on atone l>y . ,,!^ NEW FRESH WATER AND LAND SHELLS. 225 Anodonta ferruginea. Plate 19, Fig. 43. Testa elliplica, inflatd; valvulis tenuibus; natibus prominentibus, ad apices minuti undulatis, ferrugi-neis; epidermide tenebroso-fuscd, politd; margaritd cceruleo-albd et iridescente. Shell elliptical, inflated; valves thin; beaks prominent, minutely undulate at the tips, ferruginous; epi-dermis dark brown and polished; nacre bluish-white and iridescent. Hab. Simons Creek,
. Transactions - American Philosophical Society. \ ir\. 41 jliiationta. ar^en^e-a. on atone l>y . ,,!^ NEW FRESH WATER AND LAND SHELLS. 225 Anodonta ferruginea. Plate 19, Fig. 43. Testa elliplica, inflatd; valvulis tenuibus; natibus prominentibus, ad apices minuti undulatis, ferrugi-neis; epidermide tenebroso-fuscd, politd; margaritd cceruleo-albd et iridescente. Shell elliptical, inflated; valves thin; beaks prominent, minutely undulate at the tips, ferruginous; epi-dermis dark brown and polished; nacre bluish-white and iridescent. Hab. Simons Creek, Indiana. T. G. Lea. My Cabinet, and Cabinet of T. G. .1, Length , Breadth inches. Sliell elliptical, inflated, posterior margin biangular; substance of the shellthin; beaks ferruginous, prominent, with three or four nearly concentric smallfolds at the tip; ligament long and thin; epidermis dark brown and shining; ante-rior cicatrices confluent; posterior cicatrices confluent; dorsal cicatrices placednearly in the centre of the cavity of the beaks; cavity of the shell deep androunded; cavity of the bea
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