REPORT ON THE ASTEROIDEA. 571 
Colour in alcohol, a bleached yellowish grey. 
Locality. —Of Yokohama, Japan. Depth 5 to 25 fathoms. 
Remarks.—This species is characterised by the isolated abactinal spinelets, with the 
high-mounting, abruptly terminating, sheath of membrane surmounted by a wreath of 
pedicellarize, and by the presence of the oblique series of three spinelets on the actinal 
plates immediately external to the adambulacral plates. The general facies of the form is 
different from that of the other pentactinid species of Asterias. 
There is an example of this species in the Leyden Museum, from Japan, collected by 
Von Siebold, which I have had the opportunity of studying through the kindness of the 
late Professor Schlegel and Dr. Jentinck. It is labelled “Asteracanthion rubens,” and is 
stated to have been determined by Troschel ; the presence of examples of that species from 
Japan in the Leyden collection being recorded in the System der Asteriden (p. 17). I 
find two figures, but rather unsatisfactory, of this example on the proof of one of the 
unpublished plates of Echinodermata intended for the “ Fauna japonica” (Echinodermata, 
Tab. vi. figs. 3 and 4). This section, unfortunately, was never completed. Other examples 
of Asterias in the same collection, labelled ‘‘ Asteracanthion rubens,” also brought by Von 
Siebold from Japan, and probably determined at the same time as the above, are the 
Asterias amurensis of Liitken. 
5. Asterias glomerata, n. sp. (Pl. CV. figs. 1-4). 
Rays five. R=95 mm.; r=14mm. R</7r. Breadth ofa ray near the base, 17 mm. 
Rays elongate, thick, robust, broad at the base, tapering to the extremity, which is 
pointed but not attenuated. Lateral walls nearly vertical. Rays slightly convex abac- 
tinally. Disk small, the rays appearing crushed together at their base. Interbrachial 
arcs acute. 
The abactinal plates present no definite order of arrangement, though an irregular and 
often much angulated median radial line may frequently be more or less clearly traced. 
Each plate bears a single, short, moderately robust, truncate spinelet surrounded by from 
five to eight or nine large pedicellaris with vesicular bases, the whole group having the 
appearance of a more or less prominent tuft of coarse papilliform granules, the central 
spinelet being most prominent. In the interspaces between the tufts are numerous, 
closely crowded papule, and large forficiform pedicellariz are present here and there. 
The abactinal area is bounded by a regular longitudinal series of supero-marginal plates, 
which bear a single spinelet and resemble the abactinal plates above described, excepting 
that the spinelet is rather more prominent and more robust, and the encircling group of 
pedicellarize rather larger. In large specimens two spinelets are occasionally present about 
the middle or towards the extremity of the ray. Between the supero-marginal and infero- 
marginal series of plates is a wide space devoid of spinelets, which stands in the vertical 
