Object Record
Images
Metadata
Object Name |
Castalia ambigua |
Object Description |
Four valves comprising two complete freshwater mussels. The triangular-shaped valves are dark brown and have a rusty appearance. Internally the valves are slightly iridescent, and are silver to ivory in color. The valves have a small amount of silver interior nacre and a thick periostracum. The periostracum on the umbos of the valves and in various patches on the valves is flaking off due to wear. The valves are elongated, and are covered with growth lines, striations, and transverse striations. The valves have deep muscle scars and large hinge teeth. The valves have pointed posterior edges and rounded anterior edges. |
Collector |
Gibbes, Lewis Reeves, 1810-1894 |
Place of Origin |
Amazon River |
Classification |
Biology |
People |
Mazyck, William Gaillard, 1846-1942 Gibbes, Lewis Reeves, 1810-1894 |
Search Terms |
Invertebrate Bivalve Shell Mollusc Mussel Freshwater |
Dimensions |
W-5.52 L-4.3 D-2.46 cm |
Catalog Number |
21-356 |