ECHINODERMATA — CLARK. 521 



*Henricia heteractis, sp. nov. Apparently not rare. 

 '^'C oscinasterias calamaria (Gray). Very common. 

 *Ophiocoma hrevipes, Peters. Not uncommon. 

 *Ophiocoma scolopendrina (L&mk.). Common; 0. erinacea, 

 M. & T., may occur with it 



Phyllacanthus, sp.? Apparently rare. 

 *Centrostephanus rodgersii (A. Ag.) Not uncommon. 

 "^ Echinometra mathaei (BL). Ver}' common. 

 ^ Strongylocentrotus tubercidatus (Lamk.). Common. 



Echinostrephus molaris (Bl.). Of very doubtful occurrence. 

 *Tripneustes gratilla (L.). Not uncommon. 



Echinoneus cyclostoimis (Leske). Apparently not common. 

 *Breynia australasice (Leach). Abundant in the lagoon. 

 ^'Holothuria (Hifficilis, Semper. Common. 

 '* Holothuria fusco-cinerea, Jiiger, Common. 

 *Holoihuria madeari, Bell. Rather common. 



Cucumaria, sp.? Apparently rare. 



It would be interesting to give here a similar revised list of the 

 Echinoderms of New South Wales, but as the " Thetis " collection 

 contains only twenty-five of the considerably more than one 

 hundred species previously known from that region, it would be 

 presumptuous toattempt it with the material which is available 

 to me at the pieseiu time. 



The following are the new species described in this report. 

 The one marktd with an asterisk is not from the " Thetis " 

 collection, but its relationship to one of the "Thetis" species is 

 o close it was necessary to name it in order to lefer to it for 

 omparison. The type-specimen is in the collection of the Museum 

 of Comparative Zoology at Cambridge, Mass. The types of all the 

 other species-sM^ >»; the Australian Museum, but, except in the 

 case of tho? -^ -S^Pfeis fii'di'ked with a dagger, co-types are deposited 

 in the M. C. Z. collection : — 



Oligometra ihetidis. 



Ilimerometra predopliora. 



Henricia heteractis. 



Coscinasterias dubia. 



Peclinura dyscrita. 



Ophiozona g ymnopora. 



Ophiura cieno2}hora. 



A mphipJiolis auslraliana. 

 * Amphipholis hevidiscus, Chili, " Hassler" Expedition. 



Ophiacantha heterotyla, 

 ■\OpJi.ioprii>tis axiologiis. 



Ophiothrix acestra. 



