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The central areas of the plates have more or less longitudinal rows of shallow pits but the ridges between the pits are not prominent. This is a view of plates 2 (on left) to 6.
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An individual found in 2014
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This closeup shows the elongated, overlapping scales on the girdle.
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This underside view, taken of an individual crawling across glass, shows the orange-red margins of the foot.
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Lepidozona retiporosa, 12 mm long, captured at about 12-15 m depth near Rosario. The head is to the left. (Photo by: Dave Cowles, August 2007. Aaron Baldwin helped with the identification)
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This Tonicella lineata was under a rock, seen in early morning light. Note the variation in plate color compared to above picture. This would conform to the classic Tonicella lineata (see note above) Photographed at San Simeon, CA by Dave Cowles. About 3-4 cm long.
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Another individual. Dave Cowles, San Simeon, CA 4-97
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Tonicella lineata, San Simeon, CA. About 2 cm long (Photo by: Dave Cowles, 1995)
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Mopalia spectabilis at Keystone jetty, at about 18 m depth (Photo by: Kirt Onthank, August 2007)
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Stenoplax heathiana, San Simeon, CA. Head and plate 1 are to the left (Photo by: Dave Cowles, 1997)
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The head plate (plate 1, seen here) is about the same width as plate 8, and the girdle is about the same width in front as on the sides. The girdle has neither scales nor tubercles, but it does have fine, scattered hairs which are so fine and sparse that it is hard to see them except along the edges.
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The girdle hairs are sparse and fine. They can hardly be seen except, for example, here along the edge of the mantle at high magnification. The fine filaments which sprout from the hairs are often in two rows of curved, diverging bristles on opposite sides of the main hair and have a glassy spicule on the end. Photo by Dave Cowles, August 2012
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Mopalia swanii, about 5 cm long. Anterior end is to the right. (Photo by: Dave Cowles, August 2012 )
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Another view of Mopalia lignosa. Note the hairs between the plates. Photo by Dave Cowles, San Simeon, CA 1997
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Mopalia lignosa, San Simeon, CA (Photo by: Dave Cowles, 1997)
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This view of the head with plates 1-2 shows the overlapping oval scales on the girdle, the globular bumps on the lateral parts of the plates, and the longitudinal ridges in the center portions of the plates which diverge anteriorly.
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This view of the posterior end with plates 6-8 shows similar features. The longitudinal ridges in the central parts of the plates are more clearly visible here.
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Lepidozona mertensii, 3.4 cm long, found under rocks at Sares Head. Anterior end (head and plate 1) is to the left. (Photo by: Dave Cowles, July 2012 )
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Tonicella insignis crawling on coralline algae. Photo by Kirt Onthank, August 2007
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Tonicella insignis--underwater photo (Photo by: Aaron Baldwin)
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Katharina tunicata Black Chiton Katharina tunicata; taken at low tide at Swirl Rocks Photo by: Ryan Lunsford 2002
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Vista dorsal de C. tuberculatus. Foto: Julio Magaña.
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Vista dorsal de C. tuberculatus albino. Foto: Frank González.
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C. marmoratus. Isla Uvita, Costa Rica (INB0003522377).