Monography of the family Unionidæ : or, Naiades of Lamarck (fresh water bivalve shells) of North America ... . es on the posterior side; epidermis olive-yellow, very broadly rayed with green; within white. SYNONYMES. U. prasinus, Nob. New Fresh Water Shells, p. 44. May, schoolcraftensis, Lea. Trans. Amer. Phil. Soc., new series, vol. iv. p. 149, pi. iii. fig. 9. Sept. 1128. OBSERVATIONS. Inhabits the Scioto river, Indiana. The specimen of this shell in the cabinet of theAcademy of Natural Sciences was brought by from Fox river, of Green Bay—othersare
Monography of the family Unionidæ : or, Naiades of Lamarck (fresh water bivalve shells) of North America ... . es on the posterior side; epidermis olive-yellow, very broadly rayed with green; within white. SYNONYMES. U. prasinus, Nob. New Fresh Water Shells, p. 44. May, schoolcraftensis, Lea. Trans. Amer. Phil. Soc., new series, vol. iv. p. 149, pi. iii. fig. 9. Sept. 1128. OBSERVATIONS. Inhabits the Scioto river, Indiana. The specimen of this shell in the cabinet of theAcademy of Natural Sciences was brought by from Fox river, of Green Bay—othersare in the collection of Mr. Hyde. The species differsfrom U. bullatus, Raf., in being of a suborbicular out-line, more compressed, with much less prominentbeaks and fewer tubercles. Some specimens have afew rather large tubercles near the base. UNIO NODULATUS. Plate XLV.— Fig. Shell suborbicular, slightly ventricose, moderatelythick; posterior margin direct, retuse in the middle;ligament margin straight, elevated, scarcely declining;disks with two series of distant prominent tubercles; i6. Z. V. , ftaf CONTENTS Plate XLI. Fig. 1, Unio subplanus. ,, ,, Fig. 2, Unio flavus. ,, XLII. Unio capax. „ XLIII. Fig-. 1, Unio rudis. ,, ,, Fig. 2, Unio obliquus. ,, XLIV. Fig. 1, Unio apiculatus. ,, ,, Fig. 2, Unio prasinus. ,, XLV. Fig. 1, Unio nodulatus. DESCRIPTION OF A NEW ANADONTA. ANADONTA CARINIFERA. Shell narrow, elliptical, compressed, thin and fragile; anterior sidenarrow, rounded at the extremity; posterior side produced, subcunei-forrn, truncated at the extremity; hinge margin long, straight, elevatedor slightly ascending, from anterior to the posterior extremity; beaksnot elevated above the dorsal line; basal margin straight in the middle;colour of epidermis olive-green inferiorly, darker above; hinge marginwithout a callous. Length, 2J inches; height, 11 inch. Inhabits riversin Kentucky. This species is in the fine collection
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Keywords: ., bookcentury1800, bookdecade183, booksubjectmollusks, bookyear1836
