109 
reminds one of that occurring in £. albocinctus. The miliaries are not 
very numerous, and are somewhat large. 
In the ambulacral area each plate bears a single tubercle only a 
little smaller than those of the main vertical row in the interambu- 
lacrum, and throughout the greater part of the area there is a smaller 
tubercle on the inner side ; those in the poriferous zone are quite small. 
Poriferous zone narrow ; pores trigeminate, in short curved rows, 
wider than in &. albocinctus. 
In the apical ring none, or only one, of the oculars in our specimens 
reach the periproct, the external plates of which are rather large, 
centrals small. The genital plates bear 3 or 4 tubercles in a row near 
the inner margin, which are not much smaller than small ones in the 
neighbouring interambulacra, 
The peristomial area is naked, except for small buccal plates close 
to the mouth. 
Locality Off Oamaru, 25-35 fathoms. [Stewart Island, Dunedin 
{O.U.M.); Cape Campbell, Kaikoura (Farquhar).] 
Echinus albocinctus Hutton. 
Echinus albocinctus Hutton, 1872, Cat. Ech. N.Z., p. 12. 
Echinus magellanicus Hutton, 1876, non Philippi: Farquhar, loc. cit., 
1898, p. 320. 
Pseudechinus albocinctus Mortensen, 1903, p. 106. 
Echinus albocinctus Loriol, 1904, p. 18, pl. i. 
Pseudechinus albocinctus Benham, Ann. Mag. Nat. Hist. (8), 1, 1908, 
p. 107. 
Stations 22, 24. 
Eight specimens of this brightly coloured urchin were obtained 
off Shag Point and Moeraki, at depths of 20-40 fathoms, in a bottom 
of fine sand. [Also Stewart Island (O.U.M.).] 
In the present article I have reframed from using Mortensen’s 
generic names, for I gather from an abstract from Agassiz’s introduc- 
tion to his account of Panamic Deep-sea Echini (kindly made for me 
by Mr. Farquhar) that he is unable to accept them, owing to the in- 
sufficient basis on which they are founded, and that other echinologists 
also hesitate to use them. 
Echinus huttoni Benham. 
Salmacis globator Hutton, 1878, non Agassiz. 
Pseudechinus huttoni Benham, Ann. Mag. Nat. Hist. (8), i, 1908, p. 104. 
Stations 15, 16, 22, 24. 
Five individuals of this species, which has for so long been known 
but has been concealed under an erroneous pseudonym, were obtained 
off Otago Heads, Shag Point, and Moeraki, at depths of 18-44 fathoms, 
on a bottom of fine sand. [Also Stewart Island, Preservation Inlet 
(0.U.M.).] 
