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.
§ 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.