23 
considerably further south. Thus, Pocillopora in the living condition 
has been dredged up at .Garden Island on one or two of our expedi- 
tions, and Turbinaria also occurs, and extends as far south as Bun- 
bury. Almost all the Alcyonaria so far recorded came from Sharks 
Bay — the family Nephthyidae being well represented with species 
peculiar to our coast. Two Pennatulids only have been named. 
There are practically no records of hydroids, but a species of Ser- 
tularia occurs and is very common along the coast on the Zostera. 
On one of our dredging expeditions we discovered large quantities of 
Tubular ia sp. on the piles of the Fremantle Jetty. This is, so far 
as I am aware, the first record of this Gymnoblast on our coast. I 
have referred elsewhere to the occurrence of Porpita and Physalia. 
These oceanic pelagic coelenterates were captured at the Abrolhos 
Islands. 
Nemertinea. — Several beautiful specimens of the Heteronemer- 
tean Cerebratulus sp. have been dredged off Garden Island. They 
were, when extended, about six to eight inches long. Only one other 
nemertean has been obtained so far, and that has not yet been ex- 
amined. 
Chaetognatha. — Few chaetognaths, and those but of small size, 
have occurred in the plankton catches made so far. We have not 
made many, however, and so this may not indicate much. The genus 
represented seems more usually to be Spadella sp. 
Polychaeta. — The Polychaetes are practically unrecorded from 
the coast of Western Australia, but fine examples occur, and a number 
of different species have been collected and await examination. 
Echiuroidea. — In the course of our collecting at the Abrolhos Is- 
lands, two specimens of Bonellia sp. were obtained. Since then 
several specimens have been found by dredging in Freshwater 
Bay (Swan River Estuary) and off Garden Island. The species is 
moderately large but until the whole group of the Bonellida is re- 
vised it is difficult to determine the species with any certainty. 
The colour is the typical green. This is the first record, so far as I 
am aware, of this Group on our coast. 
Polyzoa. — Polyzoa appear more common than Hydroids in the 
Fremantle district and Retepora sp. and a species of Bugula are 
fairly common as well as some encrusting forms not yet investigated. 
Perhaps the most striking species is Amathia spiralis which occurs in 
great masses off Garden Island and has been dredged there on almost 
every occasion on which I have visited the grounds. 
Mollusca. — The Mollusca are on the whole better known sys- 
tematically than any other marine group on our coast, and a large 
report has just been completed by Hedley, of the Australian Museum, 
Sydney. Very many of the familiar genera of the European coast 
