16 
CRETACEOUS CORALS OR ANTIIOZOA 
4. Trociiosmilia. tuba, Frornentel. PI. I, Figs. 24 — 28. 
1863. Trochosmilia tuba, Fromentel, P.ol. FraiK;. ten-, cret., viii, p. 280, pi. 30, fig. 3. 
Trocli. corallum suh-cylindricum^ hasi attenuatum, pedicellatum atqiie later- 
cditer p/lus minusve fortiter arcuatum ; cosUs nunierosis, cequalihiis, granulatis, sulcis 
cingustioribus separcUis ; cahjce rotiindato vel t'otundate ellipticOy modice concavo, 
septis in quinque cycUs dUpositis, lateraliter confertim granidatis ; spcdio columellari 
paulmn elongato. 
This species is rather variable in form ; although always approaching the cylin- 
drical shape, its seetion often passes from round in the young to roundly ovate in 
the more adult, hut other speeimens remain permanently eylindrieal. The base is 
considerably attenuated, pedicellate, and curved towards one side. The costae are 
all equal in strength, simple in their entire length and granular, the granules being 
generally better traceable on one than on the other side of each rib. The calyx is 
moderately concave ; the septa arranged in five cycles and six systems, the stronger 
being well marked in the calyx, and all are densely and rather sharply granular at 
the sides. The size of the coralla vary from 20 — 40 mm. in height, and 15 to 
25 mm. in the width of the calyx. 
Although none of the Indian specimens appear to attain the large size of the 
type figured by Fromentel, and although the pedicellate base is in none of them 
very much curved and prolonged, the form of most of the coralla, the equally 
thick and granular costae, and the distribution of the septa, leave scarcely a doubt 
regarding the identity of the Indian with the European fossil. 
Locality. — East of Parally, in a sandy limestone ; not uncommon. 
Form a t ion \ — Ootatoor group . 
Fromentel described the species from the Turon beds at Sougraigne (Aude), 
Avhere it was found by Dumortier. 
V. Genus. — LOPIIOSMILIA, Mllne-Fdwards and Uaime, 1848. 
Corallum sub-cylindrical or conoid, sessile, somewhat wider near the calyx ; 
septa exsert, unequal, arched aboA^e, laterally granular ; columella solid, lamellar, 
generally short ; costaj simple, sub-equal, granular, generally most distinct near 
the calyx. 
This genus was established for a recent species, L. rotimdifoUa, and for one 
from cretaceous strata, L. cenomana, Michelin. The tAA'o differ from each other 
by the former having a tri-lobate columella, AA'hilc the same is entire in the creta- 
ceous fossil. For this reason Jj. was separated by d’Orbigny under the 
name of Actinosmilia, a distinction which is belicA'ed, and I think rightly, to be 
unnecessary by the authors of the Histoire Nat. dcs Coralliaires, (comp. a’oI. ii, 
p. 180). Fromentel (Pal. Fran 9 . terr. cret., 1863, vol. Auii, pp. 231, &c.,) added 
( 148 ) 
