Note 2564 — BOOK IX. THE NATURAL HISTORY OF FISHES.
John Bostock translation
This is, no doubt, the cray-fish, the same animal that has been called the “locusta” in the preceding Chapter. Aristotle states, B. iv. c. 8, that the carabus has the thorax rough and spiny. It is most probable, that it is from this name that our word “crab” is derived.