NATURAL HISTORY MISCELLANY. 445 
under the name of Haplophyllia paradoxa, and which was decided 
by him to belong to the section Rugosa. 
The last expedition of the Porcupine under the supervision of 
Dr. Carpenter and Mr. J. Gwyn Jeffreys, obtained, off the Adven- 
ture Bank in the Mediterranean, many specimens of a coral which 
has very remarkable structures and affinities. The species is de- 
seribed by Prof. P. Martin Duncan, under the name of Gwynia 
annulata Dune. The necessity of including it amongst the Ru- 
gosa and in the same family, the Cyathoxonide, as Haplophyllia 
paradoxa, is shown by him in a paper read before the Royal So- 
ciety of London. Having this proof of the persistence of the | 
rugose type from the Palzozoic seas to the present, the affinities 
òf some so-called anomalous genera of Midtertiary and Secondary 
blances with the Rugosa is determined to be allied to the Stauridee 
and especially to the Permian genus Polyceelia. The Secondary 
and Tertiary genera with hexameral, octomeral, or tetrameral and 
decameral septal arrangements are noticed, and the rugose char- 
acteristics of many lower Liassic and Rhetic species are examined. 
The impossibility of maintaining the distinctness of the Paleozoic 
and Neozoie coral faunas is asserted; and it is attempted to be 
proved that whilst some rugose types have persisted, hexameral 
types have originated from others, and have occasionally recurred 
to the original tetrameral or octomeral types; and that the species 
of corals with the confused and irregular septal members, so char- 
acteristic of the lowest Neozoic strata, descended from those Ru- 
gosa which have an indefinite arrangement of the septa. The 
relation between the Australian Tertiary and recent faunas, and 
those of the later Paleozoic and early Neozoic in Europe, is no- 
ticed, and also the long-continued biological alliances between the 
coral faunas of the two sides of the Atlantic Ocean.— Nature. 
CRINOIDS INJECTED BY Siiicates. — Dr. T. Sterry Hunt made a 
communication to the Natural History Society of Montreal, April 
24th., on a Mineral Silicate injecting Paleozoic Crinoids. 
The author described a gray granular Paleozoic limestone from 
New Brunswick, which had been examined by Dr. Dawson, and 
found to consist almost entirely of the comminuted remains of 
brachiopod and gasteropod shells, crustacea, and the joints and 
