costal groove


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Noun1.costal groove - groove between the ribs where the nerves and blood vessels are
vallecula, groove - (anatomy) any furrow or channel on a bodily structure or part
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lacertina were differences in costal groove counts, size, and vertebral characteristics.
5 mm wide; veins free, pinnate, simple or furcate; indument adaxially restricted to costal grooves, the hairs similar to those on the rachis, abaxial side of the veins with linear scales, 0.
The specimen was black on the dorsal surface and gray beneath, with numerous cuts or bite marks across the costal grooves.