th888 Rr8 88pQI'ate speC188.

CyathocI',daris sp.
Fig. 3.7-8

Material, and occurrence - I test (0 J.85.146) from the Cape Lamb Member, Snow Hill Island Formation, Marsmbio Group, Vega Island; I owner Maastrichtian.

Size and shape - The test is 33 mm in diameter
(D) and. 15 mm in height (46%D).

Apical systexI1 - Tile RplcR1 systeIn Is fossilized
with the test but is covered by hard sediment.

Tuberclllation and spines - The tubercles are perforate and their platforms, generally covered by short spines, seem to be smooth, non crenulate. The sutures Rre coIlspicuous. Slx 0I' sevexl major tubercles (plates) are present in each interambula- cl'Rl column. The Rx'Boles RI'e no collfllleIlt. Tllree kinds of spine fragments are presexved on the test: (1) the base and sometimes the annulus of the major spines is presexved attached to a lot of pri- mary tubercles; (2) the secondary spines surroun- ding the base of major spines cover most of the pri- mary tubercles; (3) fragments of the amaH smooth primary splxles SllxToundlllg tile pexls'toxne Rx"e pre- served, inclined. towards the centre of the peristo- nllR1 Rl'Ba.

Amblilacra - Only the adoral part of two ambula- cra is rather well preserved and shows two columns of large granules. Ambulacral pores, very corroded, seem to be small isopores.

Perlstonle - The peristome is circular and approxi- mately 16 mm in test diameter (about 45%D).