animal which he named Treptoplax, the specimens of which he collected from Naples. He gave the species name T. reptans in 1896. Monticelli did not preserve them and no other specimens were found again, as a result of which the identification is ruled as doubtful, and the species rejected.

Schulze's description was opposed by other zoologists. For instance, in 1890, F.C. Noll argued that the animal was a flatworm (Turbellaria). In 1907, Thilo Krumbach published a hypothesis that Trichoplax is not a