or SOUTHERN INDIA. 
35 
2. IsASTREA Siva, StoUczlca. PI. VII, Pigs. 3 — 4. 
Isast. covallmn ovahtm, moclice crassum, glomeralum aiit irregidariler' expansum 
infra epithecd granulato-striata tectum, supra convexiuscnlum ; calgcibus polygonis, 
angustis 3 ad 5 mni. latis, satis profundis, majoritnis septa 36 ad 48, granul fera, 
dense sita et incequalia exhihentibus ; costis brevissimis, nonnullis in interspatiis 
elevatis aid subcarinatis cmteris crussioribus ; columella tenuiter spongiosa. 
The corallum appears to be ratber vai'ialilc in growtli, ovate or irregularly 
expanded, snbpedunculatc, and covered below by a striated tbin epitlieca. The 
upper surface is undulating, flattened or very slightly convex, with the calyces quite 
irregularly disposed, polygonal, from 3 to 5 mm. in diameter, and rather concave. 
They arc separated by more or less elevated, angular ridges, over which the septal 
costae pass almost without any interruption. Some of the smaller calyces arc 
not even distinctly separated from the adjoining ones, which gives the sjiecies rather 
an aspect of some Latimccandroi, or when the inter-calicular ridges are less elevated, 
that of a Thamnastrea. A few of the costae are on the elevated intei’spaces 
generally slightly thicker and more elevated than the majority of the other ribs. 
The larger calyces have 36-48 granular and closely set unequal septa, shorter and 
longer ones generally alternating ; the number of septa is, however, scarcely in 
any two calyces the same. The columella is rather small, spougiose, sometimes 
apparently only formed by the twisted ends of tbc septa, 
Tbc species is closely allied to I. profunda, Ileuss, (Dcnksch. Akad., Wien, 
Math. Nat. Klasse, vii, 1854, p. 116, pi. ix, tig. 6), which has, however, the 
mural theca, separating the calyces, tolerably well developed, while in the Indian 
fossil this is almost entirely wanting. 
Locality. — North-east of Moraviatoor, in brownish earthy limestone. 
Formation. — Ootatoor group. 
Two casts of large specimens, weathered out in a brown limestone, are from north- 
east of Kauray. They generally agree with the typical form from Moraviatoor, 
but the size of the calyces varies mostly from 5 to 7 mm. Whether this larger size 
of the calyces merely indicates an individual variation, or really a different species, 
must be determined from better preserved specimens. 
3. IsASTREA CYATHIKA, StoUczlca. PL A"II, Eigs. 5 — 6. 
Isast. corallum obverse conoideum, parvum, subpediccllatum, basi angustissima 
qffixum sen fere liberum, epitlieca Icecigata indutuni, infra epitliecam costis sub- 
granulosis tenuioribus atque crassioribus alter nantibus, indistincter fasciciilatis, in- 
slructum ; calycibus sub-quadrangulariter lyolygonis, paulum profundis, majoribus 
atque minoribus interpositis, marginibus paulo elevatis unitis, theca, costo-murali 
tenui ; calycibus majoribus 8 ad 9 mm. latis, septis 48-60 granuliferis, luteraliter 
( 107 ) 
