moreover, do not form lateral projections, but are sessile, or imbedded,
as it were, in the sides of the cell immediately below the upper angles.

1. C. ornatum, n. sp. Table 1 figures 3 to 5.

Cells triangular-urn shaped, very broad above, with a straight border,
much compressed; mouths, 2 to 3, keyhole-shaped. Five fenestrae below
each mouth; numerous branching bands on the back of the cell.

Habitat: Bass Strait, 45 fathoms.

This curious species is the only one belonging to the genus. The cells
are very large, regular, and uniform, resembling very closely an antique
sculptured urn. Colour dark brown, and the walls so thick as to be nearly
opaque. The polyzoary, which appears to attain a height of four or five
inches, is bipinnate (with all the branches on one plane) the branches
alternate, and given off with extreme regularity. The ultimate ramules
are incurved. The whole forms a very elegant object. The central stem, or
series of cells, differs in no respect as regards the size or disposition
of the cells composing it, from the branches.

Fam. 2. EUCRATIADAE.

7. EUCRATEA, Lamouroux.

1. Eucratea chelata, Lamouroux.

Habitat: Bass Strait, 45 fathoms.

In all respects identical with the British form. It also occurs at Port
Adelaide.

8. ANGUINARIA, Lamarck.

1. A. spatulata, Lamarck.

Aetea anguina, Lamouroux.

Habitat: Bass Strait, and other localities.

This species (which appears to be pretty generally distributed over the
globe) is identical with the European form. It is to be remarked,
however, that a second species (A. dilatata, Busk. Annals of Natural
History second series volume 7 page 81 plate 9 figure 14) is found in
Torres Strait, but which does not occur in the Rattlesnake collection.

...

Sec. 2. MULTISERIALARIA. Cells disposed alternately in a double or multiple
series.

1. Articulata.

Polyzoary divided into distinct internodes by flexible articulations.

a. Internodes elongated, or composed of numerous cells.

Fam. 1. SALICORNARIADAE. Cells disposed around an ideal axis.

9. SALICORNARIA, Cuvier.

a. Surface divided into more or less regular hexagonal spaces by elevated
ridges.

1. S. punctata, n. sp.

Cellaria salicornioides ? Audoin. Savigny, Egypt. Plate 6 figure 7.

Hexagonal areas with an acute angle above and below; bottom of area
pyriform, surface covered with minute transparent granulations. Mouth of
cell in the upper third, with a minute tooth on each side