162 
Regarding the pedicellariæ a few facts may be stated. The 
globiferous pedicellariæ have double giands. 1 find that valves with 
a tooth only on one side and such, having a small one also on 
the other side, are found almost equally often. In some cases 1 
have found globiferous pedicellariæ with smaller head and longer 
stalle than the usual ones; but they are otherwise alike, and there 
is no such conspicuous difference between them, that one can dis- 
tinguish between two different kinds of globiferous pedicellariæ as 
in Notechinus. Among the ophicephalous pedicellariæ some have 
mueh longer valves (PI. VIII. Fig. 24) than others. It is evidently 
such an elongated form which has been figured by Doderle.n 
(Op. cit. Taf. XLV1, Fig. 8. i) under the name ot a tndentate ped- 
i c cl 1 ci ri s 
No spicules are found in the tubefeet. The giils contain a fair 
number of delicate, fenestrated plates. 
The specimens from Stewart Island have, upon the whole, a more 
reddish colour on the primary spines, which are also rather shorter 
than in the specimens from Queen Charlotte Sound. The differ¬ 
ence is, however, so unimportant that it is hardly necessary to 
speak of these forms as local variations. The smallest specimens 
in hånd, 7 — 10 mm h. d., have the basal part of the primary spines 
more greenish-brown, while in the larger specimens the colour is 
purpie, which, together with the white tips, makes this species one 
of the most beautiful Echinoids. 
The species has not been recorded from farther North than 
Wanganui (de Loriol, Op. cit.), and thus appears to be mamly 
confined to the region from Cooks Strait to Stewart Island. 
H. L. Clark (Hawaiian a. o. Pacific Echini. The Pedimdæ. . . 
Echinidæ . . ., p. 274) l ) has come to the result from the study of 
some bare tests of albocinctus, that it cannot be distinguished from 
Notechinus (or, as he names it, Parechinus) magellanicus ; at most, 
he will concede to it the rank of a variety of the said species. 
In the test he cannot find any differences between the two forms, 
and the distinguishing characters, afforded by the globiferous ped¬ 
icellariæ, he disregards. I agree, of course, that when naked tests 
of the two species are compared, the general resemblance is strik- 
x ) Mem. Mus. Comp. Zool. XXXIV, 1912. 
