This insect resembles, to the naked eye, somewhat nearly _Ctenochiton perforatus_, but the female differs in the absence of the curious perforations in the test of that species, and in the shorter and thicker antennæ, with also more long hairs on the last joint. The test of the male is also different. 32. Ctenochiton elæocarpi, Maskell. N.Z. Trans., Vol. XVII., 1884, p. 26. (Plate VII., Fig. 3.) Test of adult female oval, nearly circular, black in colour, divided into hexagonal and pentagonal segments which are not conspicuous, and of which the median series forms a very slightly elevated ridge somewhat lighter in colour. The test is only slightly convex. The fringe is very long and conspicuous, the segments tooth-like. Diameter of test, exclusive of the fringe, reaches 1/6in. Test of male unknown. Test of second stage of female white, waxy, not homogeneous, but built up of a number of loosely-aggregated tubuliform plates, somewhat resembling those of the genus _Orthezia_, Bosc. The fringe of this test is longer than in that of the adult, the teeth curling in different ways. Length of test and fringe, sometimes 1/8in. The adult female fills the test, shrivelling at gestation. Colour black. Antennæ somewhat long, of seven joints; a few hairs on the last joint. Foot normal; upper digitules strong and thick, lower pair very broad. On the skin are a number of large oval spots which appear to be the orifices of spinneret tubes. Female of the second stage wanting the usual wavy edge of the genus. Round the edge of the body is a row of sharp conical spines set closely together. Antennæ of six somewhat confused joints. Feet normal. Adult male unknown. Habitat--On _Elæocarpus dentatus_ (hinau), Wellington. The large size, black colour, and very conspicuous fringe of the adult female test, and the white loose test of the second stage, distinguish this species, especially from _Ct. fuscus_. 33. Ctenochiton elongatus, Maskell. N.Z. Trans., Vol. XI., 1878, p. 212. (Plate VII., Fig. 4.) Test of adult female elongated, narrow, convex. Length sometimes reaching 1/3in., width about 1/10in. Fringe not always conspicuous; the segments quadrate outwardly. Test divided into quadrangular divisions. Colour whitish, but often blackened by fungoid growths. Test of male unknown. Adult female filling the test, shrivelling at gestation. Edge of the body wavy. Stigmatic spines long and conspicuous. Antennæ seven-jointed. Feet normal; lower digitules absent (?). Adult male unknown. Habitat--On _Geniostoma ligustrifolium_, Auckland; on _Dendrobium_ sp., Hawke's Bay; on _Earina_ sp., Wellington. Easily recognized by the great length and narrowness of the female test. 34. Ctenochiton flavus, Maskell. N.Z. Trans., Vol. XVI., 1883, p. 130; Vol. XVII., 1884, p. 26. (Plate VII., Fig. 5.)