. Bulletin - United States National Museum. Science. MONOGRAPH OF THE EXISTING CRINOIDS. 229 Challenger. In 1881 he described similar plates in Stylometra spinifera, and in 1884 in Thalassometra lusitanica. In his memoir on the stalked crinoids of the Challenger expedition published in 1884 Carpenter wrote that the margins of the ambulacra of the disk, arms,. Pigs. 336-350.—Pinnules of VARions comatulids. 336. Middle pinndles of Nbometra MnLTicoLos. 337. Middle pinnules of Stylometra spinifeba. 338. Middle pinnules of Thalassometsa pdbescbns. 339. Distal pinndles op Neouetra multicolor. 340. A
. Bulletin - United States National Museum. Science. MONOGRAPH OF THE EXISTING CRINOIDS. 229 Challenger. In 1881 he described similar plates in Stylometra spinifera, and in 1884 in Thalassometra lusitanica. In his memoir on the stalked crinoids of the Challenger expedition published in 1884 Carpenter wrote that the margins of the ambulacra of the disk, arms,. Pigs. 336-350.—Pinnules of VARions comatulids. 336. Middle pinndles of Nbometra MnLTicoLos. 337. Middle pinnules of Stylometra spinifeba. 338. Middle pinnules of Thalassometsa pdbescbns. 339. Distal pinndles op Neouetra multicolor. 340. About the ninth pinnule of Austrometra thetidis. 341. Dorsal view of genital pinnule of Austrometra thetidis. 342. Distal pinnules op Compsombtra sebrata. 343. Distal pinnules op Ptilometba mDlleri. 344. Distal pinnules of Ocbanometra gigantea. 345. Distal pinnule of Heliometra olacialis. 346. Distal pinnules of Lampbometra gyges. 347. Distal pinnules of maetensi. 348. Distal pinnules of Pbometha owstoni. 349. Distal pinnules of Amphimetra discoidea. 350. Distal pinnules of Thalassometra villosa. and pinnules are rarely, if ever, perfectly free from any traces of calcareous structures; they may take the form of simple short spicules, which are almost entirely limited to the marginal lappets, or they may be forked and branching spicules or rounded cribriform plates of variable size which are movable and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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