triangular shell造句

The elephant-ear possesses a thick triangular shell which may be up to six inches long.
Another traditional Tatar pie is " 鲧po鏼aq ", a triangular shell originally filled with a mixture of fatty meat and onions.
On smaller shells, possibly from immature specimens, the ventral margin curves abruptly to meet the anterior and posterior margins creating a triangular shell outline.
They also still retain vestigial anterior and posterior " auricles " ( " ears ", triangular shell flaps ) along the hinge line.
It's difficult to find triangular shell in a sentence. 用triangular shell造句挺难的