Side and front view, showing the Denticulated outline of the septa dividing the chambers.
"The Student's Elements of Geology"
Sir Charles Lyell
It grows to about six inches in length, the head round and covered with scales, and the edges of the gill-covers strongly Denticulated.
"Sketches of the Natural History of Ceylon"
J. Emerson Tennent
They are strong, extremely narrow, with the beak of the lower valve much produced, and the inner edge of the upper valve Denticulated throughout.
"Sketches of the Natural History of Ceylon"
J. Emerson Tennent