ECHISODERMS I'ROM WEST AUSTRALIA. 231 
-Austral. Bd. iv. Lief. 12), which included 16 species of which three were new. 
The same year, Mr. B.Alexander published (.1914, Eec. West Aust. Mus. 
vol. i. pt. iii. pp. 108-112) a list of the echinoderms of Western Australia 
found in the Western Australian Museum at Perth. This list was based on 
papers by A. H. Clark and myself published in the same part of the 
"Records," dealing with the crinoids and the other echinoderms res- 
pectively. In his list Alexander records 86 species, of which half a dozen 
are holothurians. As there are no holothurians in the collection sent me 
by Professor Dakin I shall ignore that class, and the present remarks deal 
only with the actinogonidiate echinoderms*. Alexander includes only ten of 
the 28 ophiurans of Koehler's 1907 list and only five or six of Doderlein's 
list of echini, there being some question about certain identifications in this 
group. 
In 1918, Mortensen (Kungl. Svenska Vet.-Akad. Handl., Bd. 58. no. 9) 
published a report on echini collected by Mjoberg at Cape Jaubert and 
Broome, a region from Vifhich almost nothing was previously known. This 
collection contained 14 species, of which onlj^ four are found in Doderlein's 
list from the south-western coast. In 1919 appeared Gislen's (Kungl. Svenska 
Vet.-Akad. Handl., Bd. 59. no. 4) admirable report on the crinoids collected 
by Mjoberg, in which is given a careful and very valuable account of seven 
species, one of vvhich had not previously been reported from Western 
Australia. 
Up to the present time therefore, 125 species of echinoderms, not including 
holothurians, have been reliably reported from Western Australia, and there 
are perhaps 10 or 11 species which could be added to this list on the strength 
of old records which, may not properly' be ignored. This gives us a total of 
at least 135 species occurring in the region, already reported, but as the 
Dakin collection contains, no fewer than a dozen species not hitherto recorded, 
it is evident that the total number of echinoderms occurring on the western 
side of the Australian continent certainly exceeds 150, and it is probably in 
excess of 200. 
It is interesting to examine separately the list of species occurring at the 
Abrolhos, as those islands are said to contain the southernmost coral reefs in 
the world. Including the species here recorded, the list of forms known 
from the Abrolhos is as follows : — 
Crinoids : — 
Comatella nigra (P. H. Carp.). Comnnthus parmcirra (J. MiilL). 
C. stelligera (P. H. Carp.). C. pohjcnemis A. H. Clark. 
Cumatula Solaris (Lam.). Amplmnetra jacquinoti (J. Miill.). 
C. pectinata (L.J. Lantprometra gyges (Bell). 
Comanthus annulata (Bell). Oligometra serripinna (P. H. Carp.). 
* [The Holothurians from West Australia are in the hands of Dr. Joa. Pearson, Colombo 
.Museum.— W. J. D.] 
