单词 | tetraclade |
释义 | tetracladeadj. Zoology. Branching in four; having four arms or rays. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > class Hexactinellida > [adjective] > relating to order Lithistida > relating to suborder Tetracladina > branching in four tetraclade1881 1881 P. M. Duncan in Jrnl. Linn. Soc. XV. No. 86. 324 The quadrifid or tetraclade spicula. Derivatives tetracladine adj. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > class Hexactinellida > [adjective] > relating to order Lithistida > relating to suborder Tetracladina tetracladine1887 tetracladose1887 1887 W. J. Sollas in Encycl. Brit. XXII. 417/1 [article Sponges] Some or all of the rays of the primitive calthrops..may bifurcate once or twice and finally terminate by subdividing into numerous variously shaped processes; such a tetracladine desma characterizes one division of the Lithistid sponges. 1887 W. J. Sollas in Encycl. Brit. XXII. 422/1 The scleroblast..in the Tetracladine Lithistids lies in an angle between the arms. tetracladose adj. ΘΚΠ the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > class Hexactinellida > [adjective] > relating to order Lithistida > relating to suborder Tetracladina tetracladine1887 tetracladose1887 1887 W. J. Sollas in Encycl. Brit. XXII. 422/1 A distinct passage can be traced from the Tetracladose to the Rhabdocrepid group. This entry has not yet been fully updated (first published 1911; most recently modified version published online December 2018). < |
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