D’Orbigny, 1835
Original Description: Mycetopoda soleniformis D’Orbigny, A. 1835. Synopsis terrestrium et fluviatilium molluscorum, In suo per Americam meridionalem itinere, ab. A. d’Orbigny, collectorum. Magasin de Zoologie. 6(61/62):1-44.
Type Locality: Corrientes, Argentina and Santa Cruz de la Sierra, Bolivia.
Holotype: Location unknown.
Synonymy:
- Mycetopoda soleniformis D’Orbigny 1835
- Simpson 1900:935; 1914:1467. Haas 1966:575.
Description: “Shell elongated, falcate-rhomboid, subcompressed, scarcely subsolid, inequilateral; beaks low, subcompressed; posterior ridge full, widely rounded; dorsal outline lightly arched; base incurved medially; anterior end a little narrowed, rounded; posterior end obliquely truncate above, rounded below; epideris dull, lurid, greeish-brown, sublamellous, often faintly rayed behind; nacre very dark, lurid, with bluish, greenish and brownish tints, iridescent; prismatic border wide.
Length 75, height 28, diam. 15 mm.” (Simpson 1914:1450).
Specimens Examined: INHS 14912 (4). Rio Masparro, 5 km NW Libertad, on rd. from Libertad to Barinas, Barinas, Venezuela. 14 January 1993. K.S. Cummings & C.A. Mayer. INHS 16975 (1). Rio Masparro (Rio Apure- Rio Orinoco Dr.) 5 km NW Libertad, on rd. from Libertad to Barinas, Barinas, Venezuela. 25 January 1995. K.S. Cummings, C.A. Mayer, L.M. Page, P.A. Ceas & J.W. Armbruster.