BY F. JEFFREY BELL, M.A., SEC. R.M.S. 503 



24. Laganum peronii. 



Port Jackson. Vide infra. 



25. Arachnoides placenta. 



Port Denison. 



26. Maretia planidata. 



Port Jackson, Port Stephens. 



27. Lovenia elongata. 



Port Jackson. 



28. Breynia australasice. 



Lord Howe's Island. Vide infra 



29. Echinocardium australe. 



Port Jackson. 



30. Hemiaster apicatus. 



Port Jackson. Vide infra. 



Phyllacanthus tenuispinus. This is perhaps a MSS. error for 

 Phyllacanthus parvispinus of Tenison- Woods, or it is perhaps the 

 MSS. name of some new and as yet undescribed species. 



The specimens present sufficient points of resemblance to certain 

 points of Mr. "Wood's descriptions * to give some support to the 

 former view ; on the other hand that description deals with what in 

 one important point is a Goniocidarid rather than a Phyllacanthid 

 character — no other Phyllacanthus, to my knowledge, having its 

 longitudinal axis longer than the diameter of the test. I note so 

 many misprints in Mr. Wood's paper that I am inclined to suppose 

 that numbers of millimetres of height and diameter have been 

 reversed. 



In the next place, the specimens now being studied have only 

 seven primary tubercles in each vertical row, while Mr. Wood's 

 specimen has eight, 



This difficulty, however, I think I can remove. 

 * Proc, L.S., N.S.W., IV., p. 286. 



