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The pentacrinites, the lowest of the echinoderms, have only one living representative in tropical America, where we find at the same time the highest and largest spatangi and holothuridae. Is this not quite a parallel case with the monkeys and pachyderms? for once crinoids were the only representatives of the class of echinoderms.
Allusion has already been made to numerous zones in the Lias having each their peculiar Ammonites. Two of these occur near the base of the Lower Lias, having a united thickness, varying from 40 to 80 feet. Miller. 1/2 natural size. E. Forbes. Among the Crinoids or Stone-lilies of the Lias, the Pentacrinites are conspicuous. The remains are often highly charged with pyrites.
Where are you?" he cried; and he looked about the place, up and down, but to all appearances, he was in a cul de sac, whose walls were dotted with the fossil stems of pentacrinites, over which stalagmitic petrifaction had gradually formed, looking as if dirty water had run over the walls in places, and hardened in the course of time to stone. "Here, Dummy!
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