On The Crinoid Genus Scyphocrinus And Its Bulbous Root Camarocrinus is a scientific book written by Frank Springer in 1917. The book is a detailed study of two different species of crinoids, Scyphocrinus and Camarocrinus. Crinoids are marine animals that belong to the phylum Echinodermata and are commonly known as sea lilies. The book provides a comprehensive description of the morphology, anatomy, and taxonomy of these two species of crinoids. It...