300 Dr. P. M. Duncan on some Fossil Corah from Sinde. 



with the numerous buds. It is distinct from the Miocene 

 species. 



7. Dasyphyllia , sp. ? 



Several specimens of a species of this genus, with collared 

 eminences, are in the British Museum as well as in the Geol. 

 Soc. Coll. 



8. Montlivaltia brevis, n. sp. PI. XVIII. fig. 4. 



The corallum is short, and has a large base, which equals the 

 calice in diameter. The calice is very nearly circular and very 

 shallow. The septa are crowded, thin, and long; and there are 

 five cycles of them, with occasional orders of a sixth ; the higher 

 orders are small, and extend but a little way from the wall, while 

 the larger septa meet nearly in the centre of the cahcinal space. 

 The septa are evidently not very exsert. The costse are distinct, 

 parallel, and generally equal : close to the calice they appear to 

 have been dentate; but elsewhere, the presence, and the evi- 

 dences of the former existence, of an epitheca render them more 

 or less indistinct. There are traces of an exotheca. Height of 

 corallum -j^-tV inch. Breadth of calice 2 inches. 



From the Sinde Tertiaries. Coll. Geol. Soc. 



This species is very closely allied to M. sessilis {Anthophyllum, 

 Goldfuss), and less so to M. detrita. 



9. Antillia plana, n. sp. PI. XVIII. fig. 5. 



The corallum is very short, and has a flat base, which equals 

 the calice in diameter. The calice approaches somewhat the 

 figure of 8, is stout at the margin, rather shallow, and presents 

 a prominent circular parietal columella. The septa are crowded 

 at the margin, but less so close to the columella ; the primary are 

 the largest, being not much larger, however, than the secondary; 

 the tertiary are delicate, and reach, with those already noticed, to 

 the columella. The higher orders of septa are small, and in 

 some systems the highest are rudimentary. There are five cycles 

 of septa, in six systems. The costse are of two kinds — one sub- 

 equal and large, the other very small and only reaching a little 

 distance from the calicular margin. The columella is lax, large, 

 and occupies some space, being also nearly circular. The greatest 

 depth of the calice is a little external to the columella. The 

 epitheca is noticed here and there, but generally the distinct 

 and rather prominent plain costse are uncovered by it. Height 

 of coral 1%- to -i\ inch. Width of the calice -}-| inch ; length of 

 the calice \% inch. 



From the Sinde Tertiaries. Coll. Geol. Soc. 



The shape and large fixed base distinguish this species. It is 

 allied to A. ponderosa. 



