. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. ECHINODERMATA. 175 No. 908. Caryocrinus ornatus, Say. Body with column. The Caryocrinoids are called by Pictet, Cystideans ; but they are commonly ?placed among the true Crinoids, though differing from them in having four pelvic and six costal plates. The column is round, composed near the body of larger and smaller joints alternating with each other. The name of this genus is derived from the nut-like shape of the body. This specimen is from the Niagara group
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. ECHINODERMATA. 175 No. 908. Caryocrinus ornatus, Say. Body with column. The Caryocrinoids are called by Pictet, Cystideans ; but they are commonly ?placed among the true Crinoids, though differing from them in having four pelvic and six costal plates. The column is round, composed near the body of larger and smaller joints alternating with each other. The name of this genus is derived from the nut-like shape of the body. This specimen is from the Niagara group (Upper Silurian), Lockport, N. Y. Price $ No. 909. Caryocrinus ornatus, Say. Very perfect specimen, beautifully marked. From the same locality as the preceding. Price, $ No. 910. Cheirocrinus clarus, Hall. Body, arms and stem. The body of this Crinoid is a little flattened on the dorsal side below, and expands slightly above ; the column is short—the lower joints being longer than those above ; and the basal plate is concave. This specimen is attached by a spreading root to the frag- ment of another Crinoid column. From the Hamilton group (Devonian), Ontario Co., N. Y. Price, $ No. 911. Crotalocrinus rugosus, Miller. Body, stem and root, on pedestal. This ancient Crinoid is so called from its peculiar shape and structure. The sub-divisions of the arms begin at the very edge of the cup, and become so numerous as to form a perfect network in the shape of a convoluted funnel-like organism of the finest basket-work, instead of the rayed arrangement of the common Encrinite. The stem is made up of tu- berculated joints. From the Upper Silurian, Dudley, England. Size, 18 x 2. Price, $ No. 912. Cupellacrinus magnincus, Troost. This is a sub-genus of Platycrimis. It has three basal, and ten radial plates, and ten arms. From the Upper Helderberg (Devonian), Decatur Co. enn" Price, $ No. 913. Cyathocrinus Hoveyi, Hall. The body of this Crinoid has three se
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
