II.—Notes on Carboniferous Mollusca
- 1 April 1876
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 3 (4) , 150-156
- https://doi.org/10.1017/s0016756800154366
Abstract
Specific Chars.—Polyzoarium composed of small cylindrical stems occupied by oval to hexagonal cells arranged usually in quincunx; or in oblique ascending lines; periphery of the cells erect, sharp, and granular; granules minute, numerous, and closely arranged. Here and there the angles between the cells are occupied by a small supplementary pore or pores, which are occasionally increased in number, and extend vertically between two contiguous cells, or uniting, give rise to an elongated narrow groove-like slit. Section circular.Keywords
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