. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Pig. 286.âDolatocriuus Fio. 287.âDolatoerinns lacus. Side view. lacus. Ventral view. glyptus var. intermedins, Hall, 1862, (Ca- cabocrinus glvptus var. intermedins,) 15t'i Rep. N. Mus. Nat. Hist., p. 141, Ham. Gr. lacus, Lyon, 1857, Geo. Sur. Ky., vol. 3, p. 482, Up. Held. Gr. lamelloBus, Hall, 1862, (Cacabocrinus lamello- sus,) 15th Rep. N. Y. St. Mus. Nat. Hist., p. 141, Up. Held. Gr. liratus. Hall, 186
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Pig. 286.âDolatocriuus Fio. 287.âDolatoerinns lacus. Side view. lacus. Ventral view. glyptus var. intermedins, Hall, 1862, (Ca- cabocrinus glvptus var. intermedins,) 15t'i Rep. N. Mus. Nat. Hist., p. 141, Ham. Gr. lacus, Lyon, 1857, Geo. Sur. Ky., vol. 3, p. 482, Up. Held. Gr. lamelloBus, Hall, 1862, (Cacabocrinus lamello- sus,) 15th Rep. N. Y. St. Mus. Nat. Hist., p. 141, Up. Held. Gr. liratus. Hall, 1862, (Caca? bocrinus liratus,) 15th Rep. N. Y. St. Mus. Nat. Hist., p. 139, Ham. Gr. Hiatus var. multilira. Hall, 1862, (Cacabocrinus li- ratus var. multilira,) 15th Rep. N. Y. St. Mus. Nat. Hist, p. 139, Ham. Gr. marshi, Lyon, 1869, Trans. Am. Phil. Soc, vol. 13, p. 461, Up. Held. Gr. ornatus, Meek, 1871, Proc. Acad. Nat. Sci., p. 57, Up. Held. Gr. speciosuB, Hall, 1862, (Cacabocrinus speci- osus,) 15th Rep. N. Y. St. Mus. Nat. Hist., p. 137, Up. Held. Gr. triadactylus, Barris, 1885, Proc. Dav. Acad. Sci., vol. 4, p. 100, Ham. Gr. troosti, Hall, 1862, (Cacabocrinus, troosti,) 15th Rep. N. Y. St. Mus. Nat. Hist., p. 138, Ham. Fig. 288.âDola- tocrtnas lacus. Diagram of a ray. Donacicrinilea, Troost. Not defined. simplex, Troost. Not defined. DoRYCKiNUs, Roemer, 1854, Archiv. f. Naiur- gesch Jahrg. 19, p. 207. [Ety. dury, spear; krinon, lily.] Body turbinate or subglobose, truncate at the base, <!»â pressed in the interradial spaces 8 as to make it pentaIobi;te; dome convex and usually bearing from 1 to 6 spinos; basals 3 ; primary radials 3x5; second- ary radials 2x2; or where there are tertiary radials, there are only 1 x 2 secondaries; arms24to40; interradials 2 or 3, in two series; azygous area very different from the interradial areas, and having several more plates and an aperture near the top directed laterally; readily distiaguished from Batocrinus and
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