Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 773
that dividethe chambers of the central plane. These prolongations arevery differently arranged in different species; thus in some,as Nimunulites distans, they keep their own separate course,tending towards the centre; whilst in others, as N. l(Bvigata,they inosculate with each other, so as to… … Vertical Section of portion o? Nummulites Icevigata:—a, margin otexternal whorl; b, one of the outer row of chambers; c, c, whorl in-vested by a; d, one of the chambers of the fourth whorl from themargin; e, e, marginal portions of the enclosed whorls; /, investingportion of outer whorl; g,g,…
Microscopy
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