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单词 holostomatous
释义 holostomatous, a. Zool.|hɒləʊˈstɒmətəs|
[f. holo- + Gr. στόµα, στοµατ- mouth + -ous.]
Having the mouth entire; as the division Holostomata of gastropod molluscs, having shells of which the mouth is not notched or prolonged into a siphon; or the group Holostomi of eel-like fishes, which have all the bones of the mouth fully developed.
1872Nicholson Palæont. 244 The shells in which the mouth has this form are termed ‘holostomatous’.1888Rolleston & Jackson Anim. Life 107 These two varieties of aperture are known respectively as ‘holostomatous’ and ‘siphonostomatous’.
So holostomate |həʊˈlɒstəmət|, hoˈlostomous adjs. = prec. holostome |ˈhɒləʊstəʊm|, one of the Holostomata or of the Holostomi (see above).
1864Webster, Holostome, a univalve mollusk having the aperture of the shell entire, or without a terminating canal. Dana.1885Kingsley Stand. Nat. Hist. I. 338 We will first consider the holostomate (entire mouthed) forms.
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更新时间:2024/9/20 6:09:06