153 
my three specimens I find these plates to have the shape given in 
Fig. 26 . 1 . Also the mouth parts are not quite satisfactorily repre¬ 
sented in the said figure in Farquhar’s paper. Farquhar’s state¬ 
ment that the first tentacle scale is iong and spiniform probably 
refers to the inner mouth papilla; the tentacle scales proper are 
all rounded, leaf-like, as shown also in Farquhar’s figure. 
I can give no information as regards the propagation of this 
species. It would especially be very interesting to know whether 
it is viviparous or not — but the solution of this question requires 
much better material than that at present available. — The species 
was hitherto found only at Wellington. As pointed out by Farquhar 
this species is very closely related to Åmph. constricta Lyman. In 
faet, I am rather inelined to think that they are really the same 
species. But until we know whether A. pusilla is also viviparous 
and hermaphroditic like A. constricta we must keep them as separ¬ 
ate species. 
31. Amphiura sp. 
F'igs. 26.3—4 
A single small specimen of an Amphiura, dredged in a depth 
of 50 fathoms, 10 M. N.W. of Cape Maria van Diemen, on hard bot- 
tom (5/1.1915) very probably represents a hitherto unknown species. 
It is, however, too young for stating this definitely; but it is so 
characteristic, especially through the arrangement of the scales on 
the dorsal side of the disk that it will probably be perfeetly recog- 
nizable, and I have therefore thought it worth while describing and 
figuring it. 
Diameter of disk 2 mm, length of arms ca. 10 mm. The scales 
in the middle of the aboral side of the disk uniform, polygonal, 
arranged like a regular mosaic. Towards the edge of the disk the 
scales gradually become overlapping. No central or other primary 
plates to be distinguished. Radial shields small, Vs the length of 
the disk radius, separated, divergent. The oral side of the disk 
covered with fairly large, overlapping scales. Genital slits not yet 
distinet. The oral shields are triangular with rounded sides; adoral 
plates meeting within. Outer oral papilla fairly broad and long, 
apparently not spiniform. The ventral plates are elongate, with 
nearly straight sides, outer edge rounded. Tentacle scales not yet 
