Systematics of the North and Central American aquatic snail genus Tryonia (Rissooidea:Hydrobiidae) /
Hershler, Robert.
Systematics of the North and Central American aquatic snail genus Tryonia (Rissooidea:Hydrobiidae) / Robert Hershler. - Washington, D.C. : Smithsonian Institution Press, 2001. - 53 p. : ill., maps ; 28 cm. - Smithsonian contributions to zoology ; no. 612 .
Includes bibliographical references (p. 51-53).
2001-020792
Tryonia--Classification.
Systematics of the North and Central American aquatic snail genus Tryonia (Rissooidea:Hydrobiidae) / Robert Hershler. - Washington, D.C. : Smithsonian Institution Press, 2001. - 53 p. : ill., maps ; 28 cm. - Smithsonian contributions to zoology ; no. 612 .
Includes bibliographical references (p. 51-53).
2001-020792
Tryonia--Classification.