144 
The New Zealand specimen (Figs. 21.a.—c.) differs from the 
Kerguelen form in the character of the ventral plates, which are 
somewhat shorter and wider than generally in the typical Å. eugeniæ; 
also the characteristic form of the proximal ventral plate, shown in 
the fig.ure, affords a character distinguishing it from Å. eugeniæ. The 
shape of the oral and adoral shields is almost exactly similar to 
that of Å. eugeniæ seen in PI. VIII, fig. 8 of Koehler’s work. The 
outer mouth papilla appears to be generally more scale-like in A. 
eugeniæ than in the New Zealand form, but in Koehler’s PI. VIII, 
fig. 9 the shape of this papilla is very much like that of the New 
Zealand form. A noteworthy feature of the New Zealand form is 
the presence of a small papilla outside the normal outer papilla; 
such papilla is not observed in any of Koehler’s figures of Å. 
eugeniæ, and not mentioned in the text either.^) If this papilla 
proves to be a constant feature in the New Zealand form I would 
be inclined to ascribe some importance to it. — The radial shields 
are very small, widely divergent; they do, however, not differ 
much from those in PI. VIII, fig. 5 of Koehler’s work, less so 
than those of another specimen of Å. eugeniæ represented in Fig. 1 
on the same plate in Koehler’s work. The shape of the dorsal 
plates may perhaps prove slightly different in the two forms, but 
I cannot ascribe much importance to a small difference herein. — 
The tentacle scales are regularly two in the whole of the arm 
fragment preserved; some of the proximal pores have thr^e scales, 
as has also been observed in Å. eugeniæ by Koehler. 
I may take the opportunity here of pointing out that also Åm- 
phiura morienseni Koehler appears to be very closely related to A. 
eugeniæ and perhaps cannot be maintained as a distinet species. 
At least, a comparison between the figures of A. eugeniæ, given by 
Koehler in the work on the Echinoderms of Kerguelen quoted 
above, and those of ^4. morienseni, given by Koehler in his report 
on the Ophiuroids of the Australian Antarctic Expedition, PI. 80, 
figs. 5—8 conveys the impression that these two species are so 
closely related as to be hardly distinguishable from each other. 
1) In one of some specimens of A. eugeniæ, kindly sent me by Prof. Koeh¬ 
ler, I find a trace of this small outer papilla at one side of one of the 
mouth corners. 
