单词 | discomedusan |
释义 | > as lemmasdiscomedusan discomedusan n. and adj. Brit. , U.S. , ΚΠ 1889 Cent. Dict. Discomedusan, a. pertaining to or having the characters of the Discomedusæ. n. one of the Discomedusæ. 1891 Cent. Dict. at Subgenital Situated beneath the genitalia: specifically noting certain pits or pouches of jellyfishes, as the rhizostomous or monostomous discomedusans. 1934 R. Ruedemann Paleozoic Plankton N. Amer. 28 Walcott at first tentatively considered them as the impression of the mouth and gastric cavity of a species of Medusa and later as a discomedusan form itself, flattened in the slate. 1968 W. D. Russell-Hunter Biol. Lower Invertebr. iii. 34 Most discomedusans like Aurelia have a life-cycle pattern which involves a settled polyp of a peculiar form. 2010 Biol. Bull. 219 250/2 The Discomedusae includes the order Semaeostomeae, which is now confirmed to be paraphyletic with respect to the other discomedusan order, Rhizostomeae. < as lemmas |
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