Note 9 — Chapter IV · ON THE FORMATIONS OF THE PAMPAS.
Reading edition
“Monatsberichten der Akad. zu Berlin,” April 1845. The list consists of:— POLYGASTRICA. Gallionella sulcata. Stauroptera aspera? fragm. PHYTOLITHARIA. Lithasteriscus tuberculatus. Lithostylidium Clepsammidium. Lithostylidium quadratum. Lithostylidium rude. Lithostylidium unidentatum. Spongolithis acicularis.