A spicule occurring in certain hexactinellid sponges in the shape of a toothed rod pointed at one end and thickened or knobbed at the other.
| 单词 | θ31813 |
| 释义 | the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > class Hexactinellida > [noun] > spicule (2) clavula1887 A spicule occurring in certain hexactinellid sponges in the shape of a toothed rod pointed at one end and thickened or knobbed at the other. stauractin1905 ‘hexactinellid spicules of the dermal sponge-layer in which two of the arms are atrophied, leaving the remaining four in the form of a cross’ (Cent.… |
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