NOTES AND EXHIBITS. 151 



Mr. T. Whitelegge exhibited a mounted slide of Haliphysema 

 ramulosa, Bowerbank, a curious Foraminifer growing in erect 

 tree-like tufts, its test composed of sand grains and sponge 

 spicules. This was originally described as a sponge, but subse- 

 quent observations proved it to belong to the Foraminifera. Also 

 two slides of Polyzoa, one being Pedicellina echinata, Sars, and the 

 other a species of Gylindroecium closely allied to, if not identical 

 with, C. giganteum, Busk. The whole were collected under stones, 

 at low tide in Middle Harbour, Port Jackson, and form interesting 

 additions to our Marine Fauna. 



