Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 880
tinct from that of thepluteus) is formed atthat side of the granularmass over which theshell is last extended ;and the first indicationof it consists in the ap-pearance of the five cal-careous concretions, which are the summits of the five portions ofthe framework of jaws and teeth that surround…
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