Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 878
have been found capable of such perfectpreservation as to admit of being studied, when mounted as pre-parations, even better than when alive. The larval zooids have, bysecondary adaptations to their mode of life, acquired a type quitedifferent from that which characterises the adults ; for instead… … superior and an inferior trans-verse ciliated band, and be-tween these two the mouth ofthe zooid is always situated.The external forms of theselarva3, however, vary in a mostremarkable degree, owing to theunequal evolution of their dif-ferent parts : and there is alsoa considerable diversity in…
Microscopy
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