| 单词 | radial shield |
| 释义 | > as lemmasradial shield radial shield n. Zoology (in ophiuroids) each of the large paired plates on the aboral side of the body near the base of each arm. ΚΠ 1874 T. Lyman in Bull. Mus. Compar. Zoöl. Harvard 3 223 This species, by its conspicuous radial shields and its arms widened next the disk, stands near P. stellata. 1962 D. Nichols Echinoderms iv. 56 A pair of conspicuous plates, the radial shields, used extensively in taxonomy, lie close to the origin of each arm. 1996 Invertebr. Biol. 115 321 Growth bands are evident in sections of the radial shields of Astrobrachion constrictum. < as lemmas |
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