6 ECHINOIDEA. 
DIADEMA SETOSUM. 
Cidarites diadema, Lamk., 1816, Anim. sans Vert., p. 58. 
Diadema setosa, Gray, 1825, Ann. Phil., p. 4. 
Diadema setosum, 4. Agass., Rev. Hehin., ui., p 408. 
(a) New Caledonia - : . - - - Pres. 
(6 tv g) Ugi, Solomon Islands - - - - Coll. 
(h, ~) Ugi, Solomon Islands, denuded tests se 
Hab. South Pacific; West India; Philippine and Cape Verde 
Islands; Japan and China Seas; Hast and North Coasts of 
Australia, north of Wide Bay. 
CENTROSTEPHANUS. 
CENTROSTEPHANUS, Peters, Denksch. Akad. Berlin, 1855 ; 
A, Agass., Rev. Ech., iii., p. 409. 
CENTROSTEPHANUS RODGERSII. 
Thrichodiadema Rodgersii, 4. Aq., 1863, Proc. Acad. N.S. Phila., 
p. B54. 
Centrostephanus Rodgersu, A. Ag., 1872, Rev. Hch., Pt.i., p. 98 ; 
id. 1. ¢., W., p. 412. 
(atod) Long Bay, near Botany Heads — - - Coll. 
(Cage) fs » denuded tests _,, 
(g to7) Young, dredged in 5 faths., Port Jackson _,, 
Hab. East and South Coasts of Australia; (New Caledonia ?). 
ECHINOTHRIX. 
Ecurtnorurix, Peters, Monatsh. Akad. Berlin, 1858. 
EcHINOTHRIX CALAMARIS. 
Echinus calamaris, Pall., 1774, Spic. Zool. 
Echinothrix calamaris, 4. Agass., 1872, Rev. Hch., Pt. 1., p. 120; 
id. I. c., Pt. iii. p. 413; td. Voy. Chall, iti, p. 67, 1881. 
(a2) Ugi, Solomon Islands - - - - - Coll. 
Hab. Society Islands; East India Islands; Philippines; Fiji; 
New Hebrides and North Coasts of New Guinea; North 
Australia. 
