132 Transactions.—Zoology. 
appearance of teeth, the segments being triangular and set somewhat 
closely together. It attains sometimes a length of nearly } inch, a breadth 
of + inch, and a height of #; inch, being thus rather a large species. The 
inside of the test is whitish. | 
The adult female fills the test, and shrivels after gestation into a conical 
mass, requiring maceration or boiling in potash in order to make out the 
organs. The antenne (fig. 29) are not long. I cannot say exactly whether 
there are six or seven joints (I have figured seven), as they are much con- 
fused: on the last joint are several longish hairs. The foot (fig. 80) shows 
the tibia broadening to its extremity, with two hairs at the tip: the upper 
digitules are stronger and thicker than usual, and the lower pair end in 
conspicuously broad plates. On the edge of the body is a row of small 
conical spines, as in the last species. Colour of the insect almost black. 
In the second stage the female is less wavy in outline than in other 
species of the genus, and in its later period is somewhat thick, with the 
edges turned inwards. Feet normal: digitules fine. Antenne short and 
thick, with six joints, of which the third and fourth are the longest: on the 
last joint some long hairs. The abdominal lobes are irregularly triangular. 
Young insect normal. 
I have not seen the male; but its test appears to be narrow, white, and 
glassy. 
From Brachyglottis repanda, in the “ Dry Bush,” near Christchurch. 
The black colour both of the test and the female, its large size, and the 
digitules of the foot, sufficiently distinguish this species. Much of the 
blackness of Coccids is due to the presence of fungoid growths which always 
accompany them (I suppose, Fumago); but in this case the colour is that of 
the insect. 
4, Ctenochiton depressus, sp. nov. 
Figs. 31, 32. 
Test of female flat, nearly circular, thin, waxy, greyish-coloured : the 
fringe is inconspicuous or absent in the latest stage, but normal at earlier 
periods. Diameter about + inch. There are no rows of air-cells, or per- 
forations, in the test. 
Adult female filling the test and as usual shrivelling after gestation : 
colour brownish or grey. Antenne (fig. 81) of six joints, the third being 
the longest and, as is commonly the case, often appearing like two. On the 
last joint a few long hairs. Foot normal: the upper digitules are fine hairs, 
the lower pair only a little broader. Anal ring and lobes normal. 
In the second stage the usual wavy edge is conspicuous: the test is 
thin, glassy, with normal fringe. Antenne and feet normal. The insect 
is somewhat thick, with yellowish colour. 
Young insect normal. 
