ECHINOIDEA. 3 
PHYLLACANTHUS BACULOSA. 
Cidarites baculosa, Lamk. Anim. sans Vert., 1816. 
Phyllacanthus baculosa, A. Agass., Rev. Ech., Pt. iii., p. 388. 
(a, 6) Mauritius - = = - - - Bght. 
Hab. Mauritius; Coasts of East Africa; Red Sea. 
PHYLLACANTHUS AUSTRALIS, sp. nov. 
Port Jackson, dredged near 8S. Reet, 6 m7 Con 
a oll. 
Type of the Species - - - : - 
Hab. Port Jackson. 
PHYLLACANTHUS DUBIA. 
Phyllacanthus dubia, Br., 1835, Prod. Desc. An. ; A. Agass., 
Rev. Ech., Pt. iii., p. 389. 
(a) Port Darwin - - - - - - Coll. 
(6) Mauritius - - - - - - - Exch. 
Hab. South Africa; North Australia.* 
PHYLLACANTHUS PARVISPINIS. 
Phyllacanthus parvispinis, 7.-Woods, P. L. Soc. of NS.W., iv., 
p. 286, 1880. 
(a) Type of the species, Port Jackson. 
(b) Type of the species, denuded test, Port Jackson. 
(c tof) Port Jackson, very large specimens. 
(yg) Port Jackson, form approaching P. dubia. 
Hab. Port Jackson, East Coasts of Australia. 
STEPHA NOCIDARIS. 
StePHANOCIDARIS, A. Agass., Rev. Ech., iii., p. 398. 
(Not represented.) 
Hab. Australia, &c. 
*The common Port Jackson species usually known to Australian 
Naturalists as P. dubia, has been recently separated by 'Tenison-Woods 
as P. parvispinis. 
