28 
CRETACEOUS CORALS OR AXTUOZOA 
3. Asteoccexia pumila, Stoliczlca. PI. IV, Eig. 7. 
Astroc. comllum siih~glohosim, cahjcihns mbiutis, approximatis, poly- 
goiiis 0'7 ad 1 mill, lalis, profundmscidis, marginihus inhercnlis crassis spinidosis, 
paididum alternantihus ornatis ; septis in duohus cyclis perfectls disjwsitis ; columella 
suh-mammillata. 
A remarkably small form of a sub-globular shape, and uitb tlie calyces from 
0-7 to 1 mm. wide; they are polygonal, moderately excavated, and the united 
margins are crowned with a row of rather strong, sharp, and somewhat alternately 
placed tubercles, so as to form a slightly undulating row. There are only two 
complete cycles of unequal septa, regularly arranged in six systems. The columella 
is styliform, with a sub-mammillatc upper end. The small size of the calyces 
readily distinguishes the present species from all other known Astrocoenice. As 
regards general character one of the nearest allied species is Bolsche’s Ast. Tour- 
tiensis* from the lower Plmner near Plaucn ; but this has not only larger calyces, 
but also a larger number of septa. 
Locality. — Niuuyoor, in a whitish earthy limestone ; only the figured specimen 
has been examined. 
Formation. — Arrialoor group. 
4. AsTROCffixiA DECAPnTLLA, IHclicUn. PI. V, Pigs. 5 & 6. 
1847. Astrea decaphylla, Michelin, Icon. Zoophytol., p. 302, pi. 72, fig. 1. 
1854. Asirocmiia ead., apud E euss, DenkscL. Akad., W ieii. Math. Xat. Kla.sse, vol. vii, p. 94, pi. 8, figs. 4 — 6. 
1857. „ „ Mil.-Edwards aud Haime, Hist. nat. dos Corall., ii, p. 258. 
Astroc. corallum glohostim aut semi-glohosiun, nonniinquam incrustans ; calyci- 
bus ptolygonis pier tongue duo, rariter ires, mill, latis, polygonis, interspaciis suberis- 
tatis, aut depresse latiusculis, et gramdatis separatis, viginti septis majoribus atqne 
minoribus alternantibus, gramdiferis instructis ; columella solida, ad terminationem 
superam sub-mammillata. 
Corallum more or less globular or sometimes incrusting other substances with 
smaller and larger calyces irregularly disposed. The latter are polygonal and 
generally have a diameter of two, rarely three millimeters ; they are separated by 
simple tuberculated ridges, the tubercles being placed somewhat alternately, and 
when the surface is somewhat worn off, they give the appearance of two separate 
rows ; on a polished surface these two rows become still better traceable. The septa 
are twenty in all, alternately shorter and longer, fom- of the second cycle being 
quite as strong as those of the first cycle ; of the third cycle only eight are present, 
all are granular on the upper edge and laterally finely denticulate. The columella 
is sub-mainmillate at the upper end, thicker in some calyces than in others. 
* Geiultz’s Elbethalgebirge in Saebseu, pt. i, 1871, p. 54, pi. xi, figs. 7 and 8. 
( 1(50 ) 
