Clathrinida

The Clathrinida are an order of Calcinea; they have calcareous skeletons, and are strictly marine. These sponges have an asconoid structure and lack a true dermal membrane or cortex. The spongocoel is lined with choanocytes.
| 单词 | Clathrinida |
| 释义 |
Clathrinida
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| 随便看 |
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