sulcate
adjective
having long, narrow grooves or channels, as plant stems, or being furrowed or cleft, as hoofs.
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A species at once distinguished by the entire suture and narrow-pointed spire; the inner lip is very thick, with a longitudinal sulcation near the umbilicus.
From Zoological Illustrations, Volume III or Original Figures and Descriptions of New, Rare, or Interesting Animals by William Swainson