Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 645
iginalmedian plane, and those of adjacent piles communicating witheach other obliquely (like those of Textularia) by large apertures,whilst they communicate with those directly above and below bythe ordinary pores of the shell. The simple or smooth form ofthis genus presents great diversities of… … Tinoporus baculaius. flattened-out. A peculiar form of this type (Fig. 329), in whichthe walls of the piles are thickened at their meeting-angles into solid colnmns that appear on thesurface as tubercles, and are some-times prolonged into spinons out-growths that radiate from thecentral mass, is of…
Microscopy · Biology
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