. Cassell's natural history. Animals; Animal behavior. 34s NATURAL HIHTOUY. the first it sets on its new segments as nearly complete rings, close and neat, and with the sareode even brandling upwards into overlying rings, so as to thicken the early portion of the shell. But whether the flat compound shell is ear-shaped, and shows a delicate concentric spire on its faces, or is discoidal, with rings almost truly concentric, its sareode only comes out at the marginal pores of the last " ammli " (jiiigs) of the shell, which, like the earlier narrow curved chambers, are usually (not alwa
. Cassell's natural history. Animals; Animal behavior. 34s NATURAL HIHTOUY. the first it sets on its new segments as nearly complete rings, close and neat, and with the sareode even brandling upwards into overlying rings, so as to thicken the early portion of the shell. But whether the flat compound shell is ear-shaped, and shows a delicate concentric spire on its faces, or is discoidal, with rings almost truly concentric, its sareode only comes out at the marginal pores of the last " ammli " (jiiigs) of the shell, which, like the earlier narrow curved chambers, are usually (not always) Mil«li\ idi'd in a uniform manner, corresponding to the external openings. These are abundant in the West Indies and elsewhere. Alveolina is, as it were, an Orhiculina rolled up on a long transverse axis. They are fossil and recent. Orhitoiifes, truly concenti-ic from its first growth, has larger chambers (segments of sareode) than Orhiculina, though some of the two kinds are distinguishable with difficulty; it is also more free. Flf, 16 AARIOts FORMS OI rORtMIMPERA to grow thick in its outer Each annulus is formed by the coalescence of the peripheral crop of buds, with a new stolon going oflf from between each pair of these new segments. This is famous as being one of the common fossil Foraminifera of the white friable limestone near Paris and elsewhere in France. It lives in the Australian seas, and thrives at Fiji and elsewhere. An immense variety of forms can be grouped, according to more or less striking alliances, round the Lituola (little crozier), which is essentially an arenaceous Foraminifer, but has .some allies, which, without losing touch of Lituola in some resemblance or other, are as porcellanous as Miliola, and others which, except for their sandiness, would belong to the hyaline or vitreous gi-oup. Trochanimina (wheel sand), fossil and recent, is usually a simple, flat-coiled shell, looking like smooth .sandy ])laster. But it may be otherwise
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