| 单词 | planulan |
| 释义 | > as lemmasplanulan ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > member of > embryo planula1835 planulan1886 the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > member of > embryo planula1835 actinula1871 planulan1886 1886 Encycl. Brit. XX. 420/2 The passage from Protozoa to Metazoa was, according to Bütschli, effected neither by planulan nor gastrula but by a disk-like ‘placula’. < as lemmas |
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