. The North American Crinoidea camerata [microform]. Crinoidea, Fossil; Crinoïdes fossiles. 182 THE CKINOIDEA CAMEUATA OF NOltTII AMKllICA. coiistnicted of extremely slioit, Hlightly convex,cimento pieces. Pinnule» composed of live or more joints; long, slender, and not in liiterul contact. The first pinnule is borne upon tlie second distichnl, iibove which every joint, the nxilinries excepted, is pinnule-benring. Interradiiil luciis more substantial than in the preceding species, the plates stouter, and the median portions rather convex than concave. Each area contains from twenty-five to thi
. The North American Crinoidea camerata [microform]. Crinoidea, Fossil; Crinoïdes fossiles. 182 THE CKINOIDEA CAMEUATA OF NOltTII AMKllICA. coiistnicted of extremely slioit, Hlightly convex,cimento pieces. Pinnule» composed of live or more joints; long, slender, and not in liiterul contact. The first pinnule is borne upon tlie second distichnl, iibove which every joint, the nxilinries excepted, is pinnule-benring. Interradiiil luciis more substantial than in the preceding species, the plates stouter, and the median portions rather convex than concave. Each area contains from twenty-five to thirty pieces, some larger than others, of all possible shapes, and indis- criminately arranged. The construction of the anal side is not known. The interdistichal areas apparently extend to the top of the fifth distichals, are comparatively flat, and of similar pieces to those of the intcrradial spaces. Construction of disk and anus unknown. Column near the calyx distinctly pentangular; the nodal joints longer, slightly projecting and rounded at the margin; the internodal ones shorter, and provided with sharp edges. ILn-lziin ami Locality. — Hudson River group, Warren Co., Ohio. The tiipc specimen now in the collection of Wachsmuth and Springer. XBNOCRINUS S. A. iriLLEH. 1881. S. A. Miller; Journ. Ciiicin. Soc. Nnt. Hist., Vol. IV., p. 72. 1881. W. and Sp. ; Uovisiou I'nliroer., rnri II., p. 184. 1883. W. and Sp. ; Anicr. Journ. Sci., Vol. XXV., p. 260. 1884. r. II. Caiipkxteb j I'liilos. Trans. Hoyal Soc, Part III., p. 930. 18S5. W. and Sp.; Kcvision Talffiocr., Part III., )i. 94. 1885. W. and Sp.; Proceed. Acad. Kat. Sci. Pliila., p. 317. 1889. 8. A. MiLLEii; North Ainer. Gcol. and Pnkont., p. 287. Xcmcrinm resembles Rdeocrinvs, but is without infrabasals. Bofals four, forming a low cup, which is decagonal at the upper end; five of its sides supporting the five radials, the five others the interradial and anal plates. This arrangement gives to the basals, owing to
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