Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 529
ounds,in consequence of the great excess of tlie size of each segmentover that of its predecessor, as is generally the case in Cristel-laria; whilst in other instances there is so little differencebetween the successive segments, after the spiral has madetwo or three turns, that the breadth of each… … Mosalina ornata, with its pseudopodia extended. may be taken as an example of a very large group of Foramini-fera, composed of those whose plan of growth is helical orspiral, and ranged by M. DOrbigny under the designation COilPOSITE FORMS OF FORAIIINIFERA. 507 Helicostegues. In this genus, as in a…
Microscopy
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