How To Use Testacean In A Sentence

Molluscs, after pairing and copulation, lay a white spawn; and this spawn, as in the case of the testacean, gets granular in time. The History of Animals
Next, the male should notice nutrition on food, eat food of a few rich zincic more, wait for shrimp of testacean , fish, beef, egg and bean products like oyster.
But, we would beg to remind all such astute reasoners, of what they seem to be ignorant, namely, that sometimes diamonds are picked up from the dirtiest dung-hills, while the most beautiful of pearls are taken often from the bodies of the ugliest of testacean bivalves. Social relations in our Southern States,
Next, the male should notice nutrition on food, eat food of a few rich zincic more, wait for shrimp of testacean , fish, beef, egg and bean products like oyster.
Even in the case of the testacean we speak of spawning (or pregnancy); but whereas the crustaceans may be seen coupling and laying their spawn, this is never the case with testaceans. The History of Animals

The ceryx and the purple murex have this organ firm and solid; and just as the myops, or horse-fly, and the oestrus, or gadfly, can pierce the skin of a quadruped, so is that proboscis proportionately stronger in these testaceans; for they bore right through the shells of other shell-fish on which they prey. The History of Animals
The testacean is almost the only genus that throughout all its species is non-copulative. The History of Animals