p. 1

Dictyonema gracilis, Hall, Pal. of N.Y. Vol. 2 p. 175 pl. 40 G. fig ; Gorgonia? Hall, N.Y. Geol. Rep p 115 fig 2.

Frond circularor or flabelliform (probably cyathiform in its growing state) composed of slender bifurcating and slightly diverging branches, which are united laterally and at long intervalsby very slender filaments; branches irregularly striated or indented, sometimes having uneven or subserrate margins ; texture like D. reteformis, with an outer black film and interior subcalcareous stipe.