The spire is very short and depressed. The apex is planate. The suture is linear. The 3½ subplane whorls increase rapidly.
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Haliotis planata, common name the planate abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.
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The height of the shell attains 25 mm. The small, conical shell is variegated. The nucleus is rosaceous. The six whorls are planate.
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The shell grows to a height of 4 mm. The umbilicate, rather thick, whitish, subvitreous shell has a conic-depressed shape. The apex is obtuse. The first 3 whorls are planate above.
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The lip is black. The planate columella has a depressed-concave shape and is not produced at its base." "The ovate operculum is yellowish inside. It contains two to three whorls and a sublateral nucleus.
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The length of the shell varies between 6 mm and 12 mm. The whitish shell is somewhat thin, ovately fusiform and subventricose. It contains six whorls, slightly planate above the carina. The aperture is nearly equally contracted above and below.
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The size of the shell varies between 13 mm and 32 mm. The oblique, umbilicate shell has a depressed- conical shape. The shell is cream-colored, with the tint of a blush rose. The seven whorls are planate, very smooth in the middle.
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Beneath they show a less obvious zone of the same color;. The spiral lines number 7 to 8 on the penultimate whorl, 15 on the body whorl. The outer lip is acute, slightly sulcate, with dots of carmine. The inner lip is arcuate, reflexed, and planate.
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The length of the shell attains 30 mm. The turreted shell is pinkish white, rather thin, smooth and shining. The spire is decollated. There are nine normal whorls remaining, planate above, appressed above the sutures and medianly concave, with here and there obsolete irregular longitudinal ribs.
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O. stemmale (bottom) has pale subcostal Ax and usually at least ten cells doubled in total over the four wings \- this example shows three doubled cells in the radial planate of the forewing. The pterostigma of O. julia falsum is generally dark, whereas that of O. stemmale is pale.
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Wing detail of O. julia falsum (top) and O. stemmale'Orthetrum stemmale appears similar to O. julia falsum in south-eastern Africa. The important differences are in wing details shown in the figure (left). O. julia falsum (top) has dark subcostal Ax and has one row of cells in the radial planate (generally less than 10 cells doubled - summed over the radial planates of the four wings). This example shows a single doubled cell on each wing.
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