OF SOUTIIEPtN INDIA. 
0 
II. — MONOCITCLIA,* with six or generally eight tentacles or loculi, not in- 
creasing with age. 
The former order very closely corresponds to the ZOANTIIAPtlA of authors, 
and the latter to that of the so-called ALCYONARIA, adding to them the 
AxTiPAmiDji with six tentacles, as showing in many respects close relations to the 
GoRGOxiDjfi with eight tentacles. 
The first order, to which the subsequent remarks will solely apply, is divided 
into — 
I. — ScLERODERMATA 01 ’ Maereroraria, with the sclerenchyma forming a more 
or less solid, complete skeleton, and 
II. — Malacodermata, with or without! single loose sclerites in the derma. 
The jNIadreporaria are generally divided into five sub-orders : 
1. 31. APOROSA, with the septa well developed, and the whole sclerenchyma 
solid, not perforated. 
2. 31. PERFORATA, with scpta well developed and the sclerenchyma perforated. 
3. 31. TVBULOSA, with the septa rudimentary. 
4. 31. TARULATA, scpta wcll dcvclopcd or rudimentary, chambers divided by 
horizontal laminae. 
5. 31. RUGOSA, with only four primary septa and systems developed in the full 
grown coral ; septa never porose and not granulated laterally. 
The TABVLATA are now generally referred to the Ilydrozoa, but I have already 
observed that the researches in this respect do not appear to me conclusive. The 
same has been predicted of the rugosa; by some authors their transfer into the 
Ilydrozoa has actually been carried out, and now it has been shown that there is still 
less reason for this somewhat hasty alteration of our systematic arrangement. 
In the South Indian cretaceous deposits we have fifty-three species belonging to 
the 31. APOROSA, three belonging to the 31. perforata, and one to the 31. tabueata. 
Their distribution in the dilferent families will be readily seen from the table at 
the concluding pages of this Monograph. 
MADREPORARIA APOROSA. 
Family,— CAR YOFUYLLIDAE. 
These include a number of genera Avith simple coralla, attached l)y a narrow 
base, or free, with roimd or ovate calyces divided by septa, with one or more rows 
* His Btctclia or the LvCEnSAmiEM are, I tliink, rightly excluded from the Aiithozoa. 
t I am by no means certain that it is correct to speak of the total absence of sclerites or solid inorganic bodies in 
the Actiniacea, as is generally done even in the most recent works on zoology. In my paper on the anatomy of 
Sagartici Schilleriana, \ ha.\e, 1 believe, satisfactorily shown not only the presence of loose scleroid particles in the 
internal tissue, but of an almost regular network of the same. (Comp. Joum. A. S. B., 1809, vol. xxxviii, pi. iv, p. 38). 
I do not consider it at alt improbable that the presence of sclerites will bo proved also in other similar species. The 
[dan which I would recommend for this purpose is to kill the animal gradually by adding fresh to sea water ; then 
place the specimen in a platina crucible and heat it, until all organic matter is burnt oS. In this manner I obtained the 
rudiment of an almost regular skeleton in the above-mentioned Sagartia. 
B 
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