36 
CRETACEOUS CORALS OR ANTIIOZOA 
dense spiniilose granulosis, Us ad ])7'iniuni atque secundum cijclum pertinent ihus ccete^ds 
conspicuiter o'assiorihus ; colmnclla tenniter spongiosa, distincta. 
A small cyathiform species, with an attenuated stem, terminating pointedly, 
and covered hy a smooth epitheca. The upper surface is moderately convex, with 
few larger and smaller shallow calyces, separated hy elevated margins, on which the 
septa meet, but without perceptibly increasing in thickness. The larger calyces 
are in general suh-quadrangular, 8 to 9 mm. wide, while the smaller ones only 
measure 3 to 1 mm. The former have 48 to GO granidar and laterally densely denti- 
culated septa, of which those of the first and second cycle are conspicuously stronger 
than the others. The columella is well developed, thinly spongiose. 
As compared with the size of the corallum, that of the shallow calyces is 
remarkably great, and this character seems to he peculiar to the present species, 
distinguishing it from allied forms. 
Localities. — Kullay, in a variegated limestone, and east of Parally, in a coarse 
calcareous sandstone. 
Fomnalion . — Ootatoor group. 
4. IsASTREA MORCiiELLA, Reuss. PL VII, Eigs. 7 — 8. 
1854. Lalomaandra morchdla, Reuss, Denksch. Akacl. der Wissenseb. Wien, Math. Nat. Klasse, vii, p. 107, 
pi. xxi, figs. 9 — 10. 
Isastrea morcliella, apud Mil.-Edw. and Ilainie, Hist. Nat. des Corail., ii, p. 534. 
Isast. corallum suh-glohosum, si(p>ra convexiiiscuhim, hreviter ant sub-pedicella- 
tum, aut irregidariter expansum, hasi lata affixum, infra epitheca costulata indutum, 
costulis supra granulatis, ina^qualiOus, ad basin pjedicelli elongati sub-obsoletis ; caly- 
cibus 27 oli/gonis, 4 ad 10 mm. latis, qdus minusve pi'ofunde excavatis, plenmique jtigis 
angulatis separatis, noimunquum diiobus adjacenlibus confluentibus aut indistincter 
divisis, theca murali atit seplo-costali crassiuscula ; septis sup)ra demise granulatis, 
lateraliter spinulatis, mmerosis, 48 ad 05 in calycibus majorihus, snb-eequalibus ; 
columella tenniter spongiosa. 
I have compared the Indian specimens with typical ones from the Gosau, and 
they do not exhibit any essential dillcrcnce. The form of the corallum varies 
equally in both places ; in the Gosau the majority of specimens found are, howevej’, 
globose, strongly coua'Cx above ; in South India the greater number of specimens 
are suh-pedicellate with slightly convex or eimn flattened upper surface. The 
depth of the calyces also changes according to the state of preservation, but they are 
always concave, separated hy well marked ridges, angular Avhen well pi’escrved, 
obtuse or even flattened when worn off. 
The size of the calyces varies from 4 — 10 mm., the majority are G or 7 mm. ; 
in those of larger size generally the beginning of a division may be traced ; they 
are all polygonal, mostly irregularly hexagonal. The septa arc finely granular 
( 108^ ) 
