25 



13. Clypeaster scutiformis. Lain. 



14. Clypeaster humilis, Agass. ' '■ 



15. Laganuvi de}iressii7n, Less. 



16. Laganum decagonale, de Blainv. 



17. Echinodiscus auritus, Leske. 



18. Maretia planulaia, Gray. 



19. Lovenia subcariiiata, Gray. 



20. Brissopsis luzonica, A. Ag. 



21. Schizaster gibberulus, Agass. 



In addition, Diadema saxatile, Linn, was noted as being very common all 

 along the coast but no specimen was collected. 



I must take this opportunity of expressing my indebtedness to Professor 

 J. Arthur Thomson, for the use of a laboratory n tlie University of 

 Aberdeen ; to Professor F. Jeffrey Bell, for facilities in comparing specimens 

 with those in the British Museum ; and to Mr James Ritchie, B.Sc, for 

 assisting me in getting access to literature bearing on the subject. 



1. Phyllacanthus baculosus, A. Ag. 

 A. Ag., Rev. Ech., p. 388.' 



Locality. — IIL, Mtundo Bay, sand, shell, and coral, 6 fathoms. 



One young specimen, 14 mm. in diameter. A few spines, smooth and 

 without serration : all banded with violet and of the characteristic coloration 

 at the base. 



Two larger ones, 23 mm. in diameter, with spines up to 37 mm. 



Distrihution. — Mauritius, Mozambique, Zanzibar, and the Red Sea to 

 Mergui, Timor, and the Philippines. 



2. Phyllacanthus verticulata, A. Ag. 

 A. Ag., Rev. Ech., p. 392. 



A small specimen from no precise station : very fine spines. 

 Distribxition. — Indian Ocean. 



3. Goniocidaris canalicolata, A. Ag.. 

 A. Ag., Rev. Ech., p. 395. 

 Localities. — IX., Ibo Bay, Matemo Island ; I., Tunghi Bay, sand, mud, and 

 shell, 5 to 18 fathoms ; III., Mtundo Bay, sand, shell, and coral, 

 6 fathoms ; XL, Manangoroshi Point to Lurio Point, coral reefs. 



' References are to Agassiz's Hcvition only for all species included in that work. 



d 



