SEA LILIES, STARFISHES, ETC.—CLARK. 4b 
all are labelled thirty fathoms and it is possible they were not 
all taken at that depth, nor at the one spot. One has only 
4 arms, having divided very recently ; a second has 6 arms, 
with indication of a seventh; a third has 9 arms; the re- 
mainder have eight. None are notably large or small. 
Seven specimens. 
Loc.—Oyster Bay, Tasmania, 30 fathoms. 
Genus COSMASTERIAS, Sladen. 
COSMASTERIAS DYSORITA,! sp. nov. 
(Plate xxix., fig. 1-2.) 
Rays 5. R=67mm.; r=llmm.; R=6r. Br=15 mm. 
R=4.5 br.. Br at middle of ray=12 mm.; at 20 mm. from 
disk-centre, 17 mm.; at tip, 2.5 mm. Disk small, somewhat 
arched ; rays slightly contracted at base, then increasing 
quickly to maximum breadth, and then tapering steadily to 
the narrow tip. Abactinal skeleton thick, moderately heavy, 
with small and distinct papular areas ; those on disk con- 
tain 3-7 papulze, while the larger ones along sides of ray have 
6-8. Disk plates without definite arrangement, bearing 2-10 
low capitate spinelets, about .6 mm. high and .25 mm. thick 
at tip; there are also a very few big felipedal (as Verrill calls 
them) pedicellariz, nearly a millimeter long scattered here 
and there, besides numerous minute pedicellarie of the 
ordinary type ; neither spines nor pedicellariz are in the least 
crowded at any point. Madreporite not very large but quite 
conspicuous, being situated at the centre of a large, elevated 
plate, half way between disk-centre and margin, surrounded 
by a circle of 12-15 spinelets. Abactinal plates of rays similar 
to those of disk but arranged in 13 series at base of arms, a 
medioradial series with a dorsolateral series on each side, then 
the superomarginals, the inferomarginals, and 3 series of 
actinolaterals ; of the latter, the series next the adambulacrals 
extends less than one-third of the ray, the second reaches to 
about the middle of ray or a little beyond, and the third goes 
to within 15-20 mm. of the tip. All the plates above the 
actinolaterals carry capitate spinelets and pedicellarie like 
the disk-plates, usually only 2-3 spinelets on a plate; the 
actinolaterals each carry one, or often two spines, the largest 
on the Starfish; near the mouth they are 2 mm. long, blunt, 
somewhat flattened and nearly a millimeter wide; on the 
ule dvaKpito s=hard to determine; in reference to the uncertain relation- 
ships of the species. 
