Monographie der Turbellarien. II. Tricladida Terricola (Landplanarien)

Abstract

THE Turbellaria are rapidly becoming one of the most adequately and conveniently described groups of Invertebrates. Practically all that is at present known as to their anatomy, classification and distribution is comprised in three works—the “Monograph,” by Prof, von Graff; the special memoir, by the same author, on the “Acœla”; and the masterly work, by Prof. Arnold Lang, on the “Polycladida” in the series of monographs on the fauna and flora of Naples Bay. The work before us, a magnificent folio, completes the author's share in the monographic treatment of the group. The first part was published in 1882, and was reviewed in this journal by Prof. Moseley. It is with great pleasure that we notice the dedication of the second part—jointly to Moseley and Fritz Müller—as only one of the many felicitous ways in which Prof. von Graff expresses his admiration for the work of these his fellow-labourers in the anatomy of planarians. We heartily congratulate Prof. von Graff on the appearance of this volume, the conclusion of a work begun twenty-five years ago.

Monographie der Turbellarien. II. Tricladida Terricola (Landplanarien).

By Prof. Ludwig von Graff. Pp. i + 574 and an atlas of 58 plates. (Leipzig: W. Engelmann, 1899.)