OF SOUTHERN INDIA. 
49 
ribs are more equal in length, in their entire extent pointedly gi’anular, the inter- 
spaces are only slightly broader than the thickness of the ribs and distinctly 
sliagrccned. 
These differences will he readily observed from a comparison of the accompany- 
ing figures. 
Locality. — Moraviatoor, in earthy limestone. 
Formalion. — Ootatoor group. 
This geological position exactly corresponds to that in which C. vesictilosa is 
found in Europe ; it is one of the most common, widely spread and characteristic 
species of the Cenomanicn beds with Sca2JhUes cequalis, Amm. rostratus, ^-e. 
3. CiDARis conf. SUB- VESICULOSA, d' Orhujmj . PI. VII, Figs. 17 — 20 & 25 — 28. 
Cotteau, Pal. Fran 9 terr. eret., vol. vii, p. 257. 
Wright, J3iit. Cret. Ecliinod., p. 57. 
A few plates and spines exhibit considerable resemblance to the above species. 
The ambulacra have four closely set granules, which arc reduced to two near the 
aperture and the apex, hut they appear to he, as are also the poriferous zones, more 
distinctly undulating than in sub-vesiculosa. The interamhulacral plates are also 
similar in size, both as regards the form of the tubercles and the granulations of the 
miliary zones, hut the areolf® arc a little smaller than represented in Cotteau’ s figure 
of that species, agreeing, however, with those figured by Dr. Wright. The 
spines equally agree with those of sub-vesiculosa in their slender shape, propor- 
tionately large head, and numerous granular ribs, with narrow, shagreened 
interspaces, hut unfortunately none of the spines is preserved in its entire length, and 
the granules on the ribs were either originally smaller or they appear to become much 
more easily worn off, than is the case in the European species. Although it is pos- 
sible that the above noted differences indicate a form specifically distinct from C. sub- 
vesiculosa, the latter is the only species with which the Indian fossil can be com- 
pared ; and it is after all not improbable that the differences indicated only refer to an 
individual variation. 
Locality. — Moraviatoor, in company with the two preceding species. 
Formation . — Ootatoor group. 
C7. sub-vesiculosa is a common species of the Turonien and Senonien beds both 
in England and on the Continent of Europe. 
4. CiDAKis conf. Fakingdonensis, Wright. PI. VII, Figs. 29 — 30. 
W right figures (Monog. Brit. Cret. Echinod., pl. ii, figs. G — 8,) under the above 
name two interambulacral plates and three spines. The latter have an elongately 
cylindrical shape, ornamented with longitudinal, spinulously granular ribs, separated 
( 119 ) 
