Observations and experiments upon the fresh water Polypus, by Mons. Trembly at the Hague. Translated from the ..
... fresh water Polypus, by Mons. Trembly at the Hague. Translated from the French From the Philof. Tranfadtions, N° 467* THis is aquatic infedl, with a prettj flender body, having on its anter' or extremity feveral yet flenderer horn* which ferve inftead of legs ...