SEA LILIES, STARFISHES, ETC. — CLARK. 5 



them may range as far south as Wide Bay, Queensland, and 

 some are known to reach Port Jackson, New South Wales. 



2. South Australian subregion, including Tasmania and the 

 mainland coast south of 35°S. Lat. It merges on the 

 east coast with the East Australian subregion, and 

 some of its characteristic species reach Port Jackson. 

 This is the typical Australian marine fauna and 

 includes about one hundred and twenty species or 

 approximately 30% of the known Echinoderms. 

 More remarkable, however, is the fact that the great 

 bulk of this fauna is endemic or at least is not at 

 present known from elsewhere. Apparently not more 

 than a dozen of the Echinoderms known from the 

 southern coasts of Australia range north of Lat. 28° 

 or east or west of the Australian region. A very few 

 (of which Ophionereis schayeri is a conspicuous example) 

 occur in New Zealand. One {Echinus horridus) is 

 known from South America and South Africa and 

 perhaps more will ultimately be found with that range. 

 One starfish {Luidia maculata) has the very unusual 

 range of encircling the Australian continent and 

 reaching China and Southern Japan on the north. 

 The following are some of the most characteristic 

 species of this remarkable fauna : — 



Cbinoids. 



Comanthus trichoptera. 

 Ptilometra rnacronema. 

 Compsometra incommoda. 



ASTEKOIDS. 



Nectria ocellata. 

 Tosia aurata. 

 Pseudolinckia rhysa. 

 Plectaster decanus. 

 Coscinasterias dubia. 



Ophiukans. 



Astroconus australis. 

 Ophiactis resiliens. 

 Ophiothrix spongicola. 



Echini. 



Goniocidaris tubaria. 

 Microcyphus annulatus. 

 Amblypneustes grandis. 

 Holopneustes porosissimus . 

 Heliocidaris erythrogramma. 



