| 单词 | orthoneura | 
| 释义 | † Orthoneuran. Zoology. Obsolete.   C. Gegenbaur's name for: a proposed division of prosobranch gastropods (see quot. 1878). ΚΠ 1878    F. J. Bell  & E. R. Lankester tr.  C. Gegenbaur Elements Compar. Anat. 348  				The commissure to the abdominal or visceral ganglion takes a straight course backwards (Orthoneura). DerivativesΚΠ 1890    Cent. Dict.  				Orthoneural, pertaining to the Orthoneura, or having their characters. ΚΠ 1888    Amer. Naturalist 22 1126  				Paul Pelseueer denies..the existence of a group of Orthoneurous Gastropoda. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). <  | 
	
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