28 PERMIAN FOSSILS. 
Calamopora Mackrothu is rather a common Coral, being found at Tunstall Hill, 
Humbleton Quarry, Dalton-le-Dale, Ryhope Field-House Farm, and Whitley, in the 
Shelly Limestone. The German localities, according to Schlotheim and Geinitz, are 
Milbitz and Corbusen, in the lower Zechstein; and Gliicksbrunn and Liebenstein, in 
the Zechstein- Dolomite. 
Genus Stenopora, Lonsdale. 
CoraLLiIoLites, Schlotheim. 
TuBULICLADIA, Lonsdale.} 
Diagnosis.—* A ramose, spherical, or amorphous tubular Polypidom; tubes 
polygonal or cylindrical, radiated from a centre or an imaginary axis, contracted at 
irregular distances, but in planes parallel to the surface of the specimen; tubular 
mouths closed at final periods of growth; ridge bounding the mouths, granulated or 
tuberculated ; additional tubes interpolated.” (Lonsdale.) 
This genus, founded on an Australian fossil Coral, the Stenopora Tasmaniensis, 
Lonsdale, is stated to be “ essentially composed of simple tubes variously aggregated 
and radiating outwards. The mouth is round or oblong, and surrounded by projecting 
walls, having along the crest a row of tubercles. The mouth, originally oval, is gradually 
narrowed (svevec) by a band projecting from the inner wall of the tube, and finally 
closed.’ 
In a specimen of Stenopora Tasmaniensis given me by Mr. Morris, the tubes are 
partitioned by transverse plates, with precisely the same varying character as those in 
the tubes of the Northumberland Carboniferous Ca/amopora already noticed ; but there 
is no appearance of mural foramina. 
STENOPORA COLUMNARIS, Sch/othevm. Plate III, figs. 7, 8, and 9. 
CoRALLIOLITES COLUMNARIS, Schlotheim. Taschenbuch, p. 59, 1813. 
in = a Akad. Miinch., vol. vi, p. 23, pl. ii, fig. 10, 1820. 
STENOPORA INCRUSTANS, King. Catalogue, p. 6, 1848. 
(?) ALVEOLITES PRODUCTI, Geinitz. Versteinerungen, p. 19, pl. vu, figs. 28-31, 1848. 
Diagnosis —An incrusting Stenopora. Polypidoms ‘tubular, cylindrical, slightly 
wrinkled more or less transversely, and in close contact except towards their orifice, 
where they are a little reduced in diameter, leaving rather wide interspaces, which are 
often perforated with interpolated tubes. Apertures circular or slightly polygonal, with 
a tuberculated margin. 
This species might easily be confounded with Calamopora Mackrothi, but, leaving 
out of view the want of transverse plates and its incrusting character, it has wider 
The name Twbulicladia, which is the earliest one, was rejected by Mr. Lonsdale for that of Stenopora. 
Strzelecki’s Physical Description of New South Wales and Van Diemen’s Land, p. 262, 1845. 
Lonsdale, in Darwin’s ‘ Geological Observations on the Volcanic Islands,’ Appendix, p. 161. 
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