ECHINODEKMS FEOM WEST AUSTRALIA. 251 
BrEYNIA AUSTRALASIA. 
8]]atanyus amtralasim Leach, 1815, Zool. Misc. ii. p. 68. 
Breynia australasicE Gray, 1855, Cat. Rec. Ecb. pt. 1, p. 46. 
A single fine specimen from North _^Island shows that the characteristic 
species of Australia is not wanting at the Abrolhos. 
ECHINOCARDIUM CORDATUM. 
EMnus cordatus Pennant, 1777, Brit. Zool. iv. p. 69. 
Eohinocardium cordatus Gray, 1848, Brit. Rad. p. 6. 
Two specimens of this cosmopolitan species are in the collection. They 
were dredged off Garden Island, near Fremantle. The larger is 32 mm. long, 
22 mm. wide, and 13 mm. high. 
EXPLANATION OF PLATE 13. 
fig. 1. Petrioia obesa, sp. n., aboral view, Jrds nat. size. 
2. „ „ oral view, ,, „ 
3. Paraslernia crassa ("Gray) Fishei-, oral view, nat. aize, 
4. ,, „ aboral view, „ „ 
5. Nectria mncivbrachia, ap. n., aboral view, -J-ths nat. size, 
6. „ „ oral view, „ „ 
18* 
