...Shell cylindrical, polished, spire conic acuminated, very short; outer lip simple, inner lip thickened, tumid, columella with numerous slender plaits, aperture at the base truncatedly emarginate... 
William Swainson 「Zoological Illustrations, Volume I」
...Crassus: thick; tumid...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Labrum semicircular in outline, tumid...
Horace Gunthorp 「Journal of Entomology and Zoology」
...In endeavouring to disengage it, the animal bit him by the lip, which became instantly tumid...
David Collins 「An Account of the English Colony in New South Wales, Vol. 1」
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