Index to the Nautilus 



The anatomy of Hyridella australis. Vol. 25, No. 9, p. 100, 

 1912. 



Cumberlandia, a new genus of Naiades. Vol. 26, No.. 2, p. 13, 

 1912. 



Lampsilis ventricosa in the Upper Potomac Drainage. Vol. 26, 



No. 5, p. 51, 1912. 

 Studies in Naiades. Vol. 27, No. 8, p. 88, 1913. 

 Studies in Naiades. Vol. 28, No. 2, p. 20, 1914. 

 Studies in Naiades. Vol. 28, No. 3, p. 28, 1914. 

 Studies in Naiades. Vol. 28, No. 4, p. 41, 1914. 

 Studies in Naiades. Vol. 28, No. 6, p. 65, 1914. 

 Studies in Naiades. Vol. 28, No. 9, p. 106, 1915. 

 Studies in Naiades. Vol. 28, No. 11, p. 129, 1915. 

 Studies in Naiades. Vol. 28, No. 12, p. 141, 1915. 

 Studies in Naiades. Vol. 29, No. 6, p. 63, 1915. 

 Studies in Naiades. Vol. 30, No. 5, p. 54, 1916. 

 The anatomy of Lemiox rimosus Rafinesque. Vol. 30, No. 4, 



p. 39, 1916. 



The anatomical structure of Gonidea angulata. Vol. 30, No. 5, 

 p. 50, 1916. 



The anatomy of the Nay ad Ilyriopsis myersiana. Vol. 30, No. 

 8, p. 85, 1916. 



The anatomy of Contradens cambojensis Sowerby (Nayades). 



Vol. 30, No. 9, p. 106, 1917. 

 A new type of the Naiad-genus Fusconaia. Vol. 31, No. 2, 



p. 58, 1917. 



The anatomy of two African Naiades. Vol. 31, No. 3, p. 75, 

 1918. 



The identity of the Naiad-genus Nodularia Conrad with Unto 



Retz. Vol. 31, No. 4, p. 128, 1918. 

 The systematic position of mussels from the Ozarks. Vol. 32, 



No. 1, p. 13, 1918. 

 The anatomy of certain mussels from the Upper Tennessee. Vol. 



34, No. 3, p. 81, 1921. 

 A new locality for Arkansia wheeleri Ortmann & Walker. Vol. 



34, No. 4, p. 141, 1921. 

 Ortmann, Arnold E. and Walker, Bryant 



A new North American Naiad. Vol. 25, No. 9, p. 97, 1912. 



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